                               SEQUENCE LISTING

<110> XENCOR, INC.
 
<120> ICOS TARGETED HETERODIMERIC FUSION PROTEINS CONTAINING 
      IL-15/IL-15RA FC-FUSION PROTEINS AND ICOS ANTIGEN BINDING DOMAINS

<130> 067461-5238-WO

<140> Filed herewith
<141> 2021-12-23

<150> 63/130,541
<151> 2020-12-24

<160> 802   

<170> PatentIn version 3.5

<210> 1
<211> 162
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15 precursor sequence sp|P40933

<400> 1
Met Arg Ile Ser Lys Pro His Leu Arg Ser Ile Ser Ile Gln Cys Tyr 
1               5                   10                  15      


Leu Cys Leu Leu Leu Asn Ser His Phe Leu Thr Glu Ala Gly Ile His 
            20                  25                  30          


Val Phe Ile Leu Gly Cys Phe Ser Ala Gly Leu Pro Lys Thr Glu Ala 
        35                  40                  45              


Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
    50                  55                  60                  


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
65                  70                  75                  80  


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
                85                  90                  95      


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
            100                 105                 110         


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
        115                 120                 125             


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
    130                 135                 140                 


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
145                 150                 155                 160 


Thr Ser 
        


<210> 2
<211> 114
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15 mature form sequence sp|P40933|49-162

<400> 2
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 3
<211> 267
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15Ralpha sequence sp|Q13261

<400> 3
Met Ala Pro Arg Arg Ala Arg Gly Cys Arg Thr Leu Gly Leu Pro Ala 
1               5                   10                  15      


Leu Leu Leu Leu Leu Leu Leu Arg Pro Pro Ala Thr Arg Gly Ile Thr 
            20                  25                  30          


Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val Lys Ser 
        35                  40                  45              


Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly Phe Lys 
    50                  55                  60                  


Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn Lys Ala 
65                  70                  75                  80  


Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile Arg Asp 
                85                  90                  95      


Pro Ala Leu Val His Gln Arg Pro Ala Pro Pro Ser Thr Val Thr Thr 
            100                 105                 110         


Ala Gly Val Thr Pro Gln Pro Glu Ser Leu Ser Pro Ser Gly Lys Glu 
        115                 120                 125             


Pro Ala Ala Ser Ser Pro Ser Ser Asn Asn Thr Ala Ala Thr Thr Ala 
    130                 135                 140                 


Ala Ile Val Pro Gly Ser Gln Leu Met Pro Ser Lys Ser Pro Ser Thr 
145                 150                 155                 160 


Gly Thr Thr Glu Ile Ser Ser His Glu Ser Ser His Gly Thr Pro Ser 
                165                 170                 175     


Gln Thr Thr Ala Lys Asn Trp Glu Leu Thr Ala Ser Ala Ser His Gln 
            180                 185                 190         


Pro Pro Gly Val Tyr Pro Gln Gly His Ser Asp Thr Thr Val Ala Ile 
        195                 200                 205             


Ser Thr Ser Thr Val Leu Leu Cys Gly Leu Ser Ala Val Ser Leu Leu 
    210                 215                 220                 


Ala Cys Tyr Leu Lys Ser Arg Gln Thr Pro Pro Leu Ala Ser Val Glu 
225                 230                 235                 240 


Met Glu Ala Met Glu Ala Leu Pro Val Thr Trp Gly Thr Ser Ser Arg 
                245                 250                 255     


Asp Glu Asp Leu Glu Asn Cys Ser His His Leu 
            260                 265         


<210> 4
<211> 175
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15Ralpha, extracellular domain sp|Q13261|31-205

<400> 4
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Asp Pro Ala Leu Val His Gln Arg Pro Ala Pro Pro Ser Thr Val 
65                  70                  75                  80  


Thr Thr Ala Gly Val Thr Pro Gln Pro Glu Ser Leu Ser Pro Ser Gly 
                85                  90                  95      


Lys Glu Pro Ala Ala Ser Ser Pro Ser Ser Asn Asn Thr Ala Ala Thr 
            100                 105                 110         


Thr Ala Ala Ile Val Pro Gly Ser Gln Leu Met Pro Ser Lys Ser Pro 
        115                 120                 125             


Ser Thr Gly Thr Thr Glu Ile Ser Ser His Glu Ser Ser His Gly Thr 
    130                 135                 140                 


Pro Ser Gln Thr Thr Ala Lys Asn Trp Glu Leu Thr Ala Ser Ala Ser 
145                 150                 155                 160 


His Gln Pro Pro Gly Val Tyr Pro Gln Gly His Ser Asp Thr Thr 
                165                 170                 175 


<210> 5
<211> 65
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15Ralpha, sushi domain sp|Q13261|31-95

<400> 5
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg 
65  


<210> 6
<211> 551
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15Rbeta sequence sp|P14784

<400> 6
Met Ala Ala Pro Ala Leu Ser Trp Arg Leu Pro Leu Leu Ile Leu Leu 
1               5                   10                  15      


Leu Pro Leu Ala Thr Ser Trp Ala Ser Ala Ala Val Asn Gly Thr Ser 
            20                  25                  30          


Gln Phe Thr Cys Phe Tyr Asn Ser Arg Ala Asn Ile Ser Cys Val Trp 
        35                  40                  45              


Ser Gln Asp Gly Ala Leu Gln Asp Thr Ser Cys Gln Val His Ala Trp 
    50                  55                  60                  


Pro Asp Arg Arg Arg Trp Asn Gln Thr Cys Glu Leu Leu Pro Val Ser 
65                  70                  75                  80  


Gln Ala Ser Trp Ala Cys Asn Leu Ile Leu Gly Ala Pro Asp Ser Gln 
                85                  90                  95      


Lys Leu Thr Thr Val Asp Ile Val Thr Leu Arg Val Leu Cys Arg Glu 
            100                 105                 110         


Gly Val Arg Trp Arg Val Met Ala Ile Gln Asp Phe Lys Pro Phe Glu 
        115                 120                 125             


Asn Leu Arg Leu Met Ala Pro Ile Ser Leu Gln Val Val His Val Glu 
    130                 135                 140                 


Thr His Arg Cys Asn Ile Ser Trp Glu Ile Ser Gln Ala Ser His Tyr 
145                 150                 155                 160 


Phe Glu Arg His Leu Glu Phe Glu Ala Arg Thr Leu Ser Pro Gly His 
                165                 170                 175     


Thr Trp Glu Glu Ala Pro Leu Leu Thr Leu Lys Gln Lys Gln Glu Trp 
            180                 185                 190         


Ile Cys Leu Glu Thr Leu Thr Pro Asp Thr Gln Tyr Glu Phe Gln Val 
        195                 200                 205             


Arg Val Lys Pro Leu Gln Gly Glu Phe Thr Thr Trp Ser Pro Trp Ser 
    210                 215                 220                 


Gln Pro Leu Ala Phe Arg Thr Lys Pro Ala Ala Leu Gly Lys Asp Thr 
225                 230                 235                 240 


Ile Pro Trp Leu Gly His Leu Leu Val Gly Leu Ser Gly Ala Phe Gly 
                245                 250                 255     


Phe Ile Ile Leu Val Tyr Leu Leu Ile Asn Cys Arg Asn Thr Gly Pro 
            260                 265                 270         


Trp Leu Lys Lys Val Leu Lys Cys Asn Thr Pro Asp Pro Ser Lys Phe 
        275                 280                 285             


Phe Ser Gln Leu Ser Ser Glu His Gly Gly Asp Val Gln Lys Trp Leu 
    290                 295                 300                 


Ser Ser Pro Phe Pro Ser Ser Ser Phe Ser Pro Gly Gly Leu Ala Pro 
305                 310                 315                 320 


Glu Ile Ser Pro Leu Glu Val Leu Glu Arg Asp Lys Val Thr Gln Leu 
                325                 330                 335     


Leu Leu Gln Gln Asp Lys Val Pro Glu Pro Ala Ser Leu Ser Ser Asn 
            340                 345                 350         


His Ser Leu Thr Ser Cys Phe Thr Asn Gln Gly Tyr Phe Phe Phe His 
        355                 360                 365             


Leu Pro Asp Ala Leu Glu Ile Glu Ala Cys Gln Val Tyr Phe Thr Tyr 
    370                 375                 380                 


Asp Pro Tyr Ser Glu Glu Asp Pro Asp Glu Gly Val Ala Gly Ala Pro 
385                 390                 395                 400 


Thr Gly Ser Ser Pro Gln Pro Leu Gln Pro Leu Ser Gly Glu Asp Asp 
                405                 410                 415     


Ala Tyr Cys Thr Phe Pro Ser Arg Asp Asp Leu Leu Leu Phe Ser Pro 
            420                 425                 430         


Ser Leu Leu Gly Gly Pro Ser Pro Pro Ser Thr Ala Pro Gly Gly Ser 
        435                 440                 445             


Gly Ala Gly Glu Glu Arg Met Pro Pro Ser Leu Gln Glu Arg Val Pro 
    450                 455                 460                 


Arg Asp Trp Asp Pro Gln Pro Leu Gly Pro Pro Thr Pro Gly Val Pro 
465                 470                 475                 480 


Asp Leu Val Asp Phe Gln Pro Pro Pro Glu Leu Val Leu Arg Glu Ala 
                485                 490                 495     


Gly Glu Glu Val Pro Asp Ala Gly Pro Arg Glu Gly Val Ser Phe Pro 
            500                 505                 510         


Trp Ser Arg Pro Pro Gly Gln Gly Glu Phe Arg Ala Leu Asn Ala Arg 
        515                 520                 525             


Leu Pro Leu Asn Thr Asp Ala Tyr Leu Ser Leu Gln Glu Leu Gln Gly 
    530                 535                 540                 


Gln Asp Pro Thr His Leu Val 
545                 550     


<210> 7
<211> 214
<212> PRT
<213> Homo sapiens

<220>
<223> Human IL-15Rbeta, extracellular domain sp|P14784|27-240

<400> 7
Ala Val Asn Gly Thr Ser Gln Phe Thr Cys Phe Tyr Asn Ser Arg Ala 
1               5                   10                  15      


Asn Ile Ser Cys Val Trp Ser Gln Asp Gly Ala Leu Gln Asp Thr Ser 
            20                  25                  30          


Cys Gln Val His Ala Trp Pro Asp Arg Arg Arg Trp Asn Gln Thr Cys 
        35                  40                  45              


Glu Leu Leu Pro Val Ser Gln Ala Ser Trp Ala Cys Asn Leu Ile Leu 
    50                  55                  60                  


Gly Ala Pro Asp Ser Gln Lys Leu Thr Thr Val Asp Ile Val Thr Leu 
65                  70                  75                  80  


Arg Val Leu Cys Arg Glu Gly Val Arg Trp Arg Val Met Ala Ile Gln 
                85                  90                  95      


Asp Phe Lys Pro Phe Glu Asn Leu Arg Leu Met Ala Pro Ile Ser Leu 
            100                 105                 110         


Gln Val Val His Val Glu Thr His Arg Cys Asn Ile Ser Trp Glu Ile 
        115                 120                 125             


Ser Gln Ala Ser His Tyr Phe Glu Arg His Leu Glu Phe Glu Ala Arg 
    130                 135                 140                 


Thr Leu Ser Pro Gly His Thr Trp Glu Glu Ala Pro Leu Leu Thr Leu 
145                 150                 155                 160 


Lys Gln Lys Gln Glu Trp Ile Cys Leu Glu Thr Leu Thr Pro Asp Thr 
                165                 170                 175     


Gln Tyr Glu Phe Gln Val Arg Val Lys Pro Leu Gln Gly Glu Phe Thr 
            180                 185                 190         


Thr Trp Ser Pro Trp Ser Gln Pro Leu Ala Phe Arg Thr Lys Pro Ala 
        195                 200                 205             


Ala Leu Gly Lys Asp Thr 
    210                 


<210> 8
<211> 369
<212> PRT
<213> Homo sapiens

<220>
<223> Human common gamma chain sequence sp|P31785

<400> 8
Met Leu Lys Pro Ser Leu Pro Phe Thr Ser Leu Leu Phe Leu Gln Leu 
1               5                   10                  15      


Pro Leu Leu Gly Val Gly Leu Asn Thr Thr Ile Leu Thr Pro Asn Gly 
            20                  25                  30          


Asn Glu Asp Thr Thr Ala Asp Phe Phe Leu Thr Thr Met Pro Thr Asp 
        35                  40                  45              


Ser Leu Ser Val Ser Thr Leu Pro Leu Pro Glu Val Gln Cys Phe Val 
    50                  55                  60                  


Phe Asn Val Glu Tyr Met Asn Cys Thr Trp Asn Ser Ser Ser Glu Pro 
65                  70                  75                  80  


Gln Pro Thr Asn Leu Thr Leu His Tyr Trp Tyr Lys Asn Ser Asp Asn 
                85                  90                  95      


Asp Lys Val Gln Lys Cys Ser His Tyr Leu Phe Ser Glu Glu Ile Thr 
            100                 105                 110         


Ser Gly Cys Gln Leu Gln Lys Lys Glu Ile His Leu Tyr Gln Thr Phe 
        115                 120                 125             


Val Val Gln Leu Gln Asp Pro Arg Glu Pro Arg Arg Gln Ala Thr Gln 
    130                 135                 140                 


Met Leu Lys Leu Gln Asn Leu Val Ile Pro Trp Ala Pro Glu Asn Leu 
145                 150                 155                 160 


Thr Leu His Lys Leu Ser Glu Ser Gln Leu Glu Leu Asn Trp Asn Asn 
                165                 170                 175     


Arg Phe Leu Asn His Cys Leu Glu His Leu Val Gln Tyr Arg Thr Asp 
            180                 185                 190         


Trp Asp His Ser Trp Thr Glu Gln Ser Val Asp Tyr Arg His Lys Phe 
        195                 200                 205             


Ser Leu Pro Ser Val Asp Gly Gln Lys Arg Tyr Thr Phe Arg Val Arg 
    210                 215                 220                 


Ser Arg Phe Asn Pro Leu Cys Gly Ser Ala Gln His Trp Ser Glu Trp 
225                 230                 235                 240 


Ser His Pro Ile His Trp Gly Ser Asn Thr Ser Lys Glu Asn Pro Phe 
                245                 250                 255     


Leu Phe Ala Leu Glu Ala Val Val Ile Ser Val Gly Ser Met Gly Leu 
            260                 265                 270         


Ile Ile Ser Leu Leu Cys Val Tyr Phe Trp Leu Glu Arg Thr Met Pro 
        275                 280                 285             


Arg Ile Pro Thr Leu Lys Asn Leu Glu Asp Leu Val Thr Glu Tyr His 
    290                 295                 300                 


Gly Asn Phe Ser Ala Trp Ser Gly Val Ser Lys Gly Leu Ala Glu Ser 
305                 310                 315                 320 


Leu Gln Pro Asp Tyr Ser Glu Arg Leu Cys Leu Val Ser Glu Ile Pro 
                325                 330                 335     


Pro Lys Gly Gly Ala Leu Gly Glu Gly Pro Gly Ala Ser Pro Cys Asn 
            340                 345                 350         


Gln His Ser Pro Tyr Trp Ala Pro Pro Cys Tyr Thr Leu Lys Pro Glu 
        355                 360                 365             


Thr 
    


<210> 9
<211> 240
<212> PRT
<213> Homo sapiens

<220>
<223> Human common gamma chain, extracellular domain
      sp|P31785|23-262

<400> 9
Leu Asn Thr Thr Ile Leu Thr Pro Asn Gly Asn Glu Asp Thr Thr Ala 
1               5                   10                  15      


Asp Phe Phe Leu Thr Thr Met Pro Thr Asp Ser Leu Ser Val Ser Thr 
            20                  25                  30          


Leu Pro Leu Pro Glu Val Gln Cys Phe Val Phe Asn Val Glu Tyr Met 
        35                  40                  45              


Asn Cys Thr Trp Asn Ser Ser Ser Glu Pro Gln Pro Thr Asn Leu Thr 
    50                  55                  60                  


Leu His Tyr Trp Tyr Lys Asn Ser Asp Asn Asp Lys Val Gln Lys Cys 
65                  70                  75                  80  


Ser His Tyr Leu Phe Ser Glu Glu Ile Thr Ser Gly Cys Gln Leu Gln 
                85                  90                  95      


Lys Lys Glu Ile His Leu Tyr Gln Thr Phe Val Val Gln Leu Gln Asp 
            100                 105                 110         


Pro Arg Glu Pro Arg Arg Gln Ala Thr Gln Met Leu Lys Leu Gln Asn 
        115                 120                 125             


Leu Val Ile Pro Trp Ala Pro Glu Asn Leu Thr Leu His Lys Leu Ser 
    130                 135                 140                 


Glu Ser Gln Leu Glu Leu Asn Trp Asn Asn Arg Phe Leu Asn His Cys 
145                 150                 155                 160 


Leu Glu His Leu Val Gln Tyr Arg Thr Asp Trp Asp His Ser Trp Thr 
                165                 170                 175     


Glu Gln Ser Val Asp Tyr Arg His Lys Phe Ser Leu Pro Ser Val Asp 
            180                 185                 190         


Gly Gln Lys Arg Tyr Thr Phe Arg Val Arg Ser Arg Phe Asn Pro Leu 
        195                 200                 205             


Cys Gly Ser Ala Gln His Trp Ser Glu Trp Ser His Pro Ile His Trp 
    210                 215                 220                 


Gly Ser Asn Thr Ser Lys Glu Asn Pro Phe Leu Phe Ala Leu Glu Ala 
225                 230                 235                 240 


<210> 10
<211> 199
<212> PRT
<213> Homo sapiens

<220>
<223> Human ICOS sequence sp|Q9Y6W8

<400> 10
Met Lys Ser Gly Leu Trp Tyr Phe Phe Leu Phe Cys Leu Arg Ile Lys 
1               5                   10                  15      


Val Leu Thr Gly Glu Ile Asn Gly Ser Ala Asn Tyr Glu Met Phe Ile 
            20                  25                  30          


Phe His Asn Gly Gly Val Gln Ile Leu Cys Lys Tyr Pro Asp Ile Val 
        35                  40                  45              


Gln Gln Phe Lys Met Gln Leu Leu Lys Gly Gly Gln Ile Leu Cys Asp 
    50                  55                  60                  


Leu Thr Lys Thr Lys Gly Ser Gly Asn Thr Val Ser Ile Lys Ser Leu 
65                  70                  75                  80  


Lys Phe Cys His Ser Gln Leu Ser Asn Asn Ser Val Ser Phe Phe Leu 
                85                  90                  95      


Tyr Asn Leu Asp His Ser His Ala Asn Tyr Tyr Phe Cys Asn Leu Ser 
            100                 105                 110         


Ile Phe Asp Pro Pro Pro Phe Lys Val Thr Leu Thr Gly Gly Tyr Leu 
        115                 120                 125             


His Ile Tyr Glu Ser Gln Leu Cys Cys Gln Leu Lys Phe Trp Leu Pro 
    130                 135                 140                 


Ile Gly Cys Ala Ala Phe Val Val Val Cys Ile Leu Gly Cys Ile Leu 
145                 150                 155                 160 


Ile Cys Trp Leu Thr Lys Lys Lys Tyr Ser Ser Ser Val His Asp Pro 
                165                 170                 175     


Asn Gly Glu Tyr Met Phe Met Arg Ala Val Asn Thr Ala Lys Lys Ser 
            180                 185                 190         


Arg Leu Thr Asp Val Thr Leu 
        195                 


<210> 11
<211> 120
<212> PRT
<213> Homo sapiens

<220>
<223> Human ICOS sequence, extracellular domain sp|Q9Y6W8|21-140

<400> 11
Glu Ile Asn Gly Ser Ala Asn Tyr Glu Met Phe Ile Phe His Asn Gly 
1               5                   10                  15      


Gly Val Gln Ile Leu Cys Lys Tyr Pro Asp Ile Val Gln Gln Phe Lys 
            20                  25                  30          


Met Gln Leu Leu Lys Gly Gly Gln Ile Leu Cys Asp Leu Thr Lys Thr 
        35                  40                  45              


Lys Gly Ser Gly Asn Thr Val Ser Ile Lys Ser Leu Lys Phe Cys His 
    50                  55                  60                  


Ser Gln Leu Ser Asn Asn Ser Val Ser Phe Phe Leu Tyr Asn Leu Asp 
65                  70                  75                  80  


His Ser His Ala Asn Tyr Tyr Phe Cys Asn Leu Ser Ile Phe Asp Pro 
                85                  90                  95      


Pro Pro Phe Lys Val Thr Leu Thr Gly Gly Tyr Leu His Ile Tyr Glu 
            100                 105                 110         


Ser Gln Leu Cys Cys Gln Leu Lys 
        115                 120 


<210> 12
<211> 199
<212> PRT
<213> Macaca fascicularis

<220>
<223> Macaca fascicularis ICOS sequence gi|544477053|ref|
      XP_005574075.1

<400> 12
Met Lys Ser Gly Leu Trp Tyr Phe Phe Leu Phe Cys Leu His Met Lys 
1               5                   10                  15      


Val Leu Thr Gly Glu Ile Asn Gly Ser Ala Asn Tyr Glu Met Phe Ile 
            20                  25                  30          


Phe His Asn Gly Gly Val Gln Ile Leu Cys Lys Tyr Pro Asp Ile Val 
        35                  40                  45              


Gln Gln Phe Lys Met Gln Leu Leu Lys Gly Gly Gln Ile Leu Cys Asp 
    50                  55                  60                  


Leu Thr Lys Thr Lys Gly Ser Gly Asn Thr Val Ser Ile Lys Ser Leu 
65                  70                  75                  80  


Lys Phe Cys His Ser Gln Leu Ser Asn Asn Ser Val Ser Phe Phe Leu 
                85                  90                  95      


Tyr Asn Leu Asp Arg Ser His Ala Asn Tyr Tyr Phe Cys Asn Leu Ser 
            100                 105                 110         


Ile Phe Asp Pro Pro Pro Phe Lys Val Thr Leu Thr Gly Gly Tyr Leu 
        115                 120                 125             


His Ile Tyr Glu Ser Gln Leu Cys Cys Gln Leu Lys Phe Trp Leu Pro 
    130                 135                 140                 


Ile Gly Cys Ala Thr Phe Val Val Val Cys Ile Phe Gly Cys Ile Leu 
145                 150                 155                 160 


Ile Cys Trp Leu Thr Lys Lys Lys Tyr Ser Ser Thr Val His Asp Pro 
                165                 170                 175     


Asn Gly Glu Tyr Met Phe Met Arg Ala Val Asn Thr Ala Lys Lys Ser 
            180                 185                 190         


Arg Leu Thr Asp Val Thr Val 
        195                 


<210> 13
<211> 120
<212> PRT
<213> Macaca fascicularis

<220>
<223> Macaca fascicularis ICOS sequence, extracellular domain
      (predicted) gi|544477053|ref|XP_005574075.1|21-140

<400> 13
Glu Ile Asn Gly Ser Ala Asn Tyr Glu Met Phe Ile Phe His Asn Gly 
1               5                   10                  15      


Gly Val Gln Ile Leu Cys Lys Tyr Pro Asp Ile Val Gln Gln Phe Lys 
            20                  25                  30          


Met Gln Leu Leu Lys Gly Gly Gln Ile Leu Cys Asp Leu Thr Lys Thr 
        35                  40                  45              


Lys Gly Ser Gly Asn Thr Val Ser Ile Lys Ser Leu Lys Phe Cys His 
    50                  55                  60                  


Ser Gln Leu Ser Asn Asn Ser Val Ser Phe Phe Leu Tyr Asn Leu Asp 
65                  70                  75                  80  


Arg Ser His Ala Asn Tyr Tyr Phe Cys Asn Leu Ser Ile Phe Asp Pro 
                85                  90                  95      


Pro Pro Phe Lys Val Thr Leu Thr Gly Gly Tyr Leu His Ile Tyr Glu 
            100                 105                 110         


Ser Gln Leu Cys Cys Gln Leu Lys 
        115                 120 


<210> 14
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 14
Gly Gly Gly Gly Ser 
1               5   


<210> 15
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 15
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
1               5                   10  


<210> 16
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 16
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
1               5                   10                  15  


<210> 17
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 17
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser 
            20  


<210> 18
<211> 25
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 18
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser Gly Gly Gly Gly Ser 
            20                  25  


<210> 19
<211> 30
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<400> 19
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
            20                  25                  30  


<210> 20
<211> 35
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<400> 20
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly 
            20                  25                  30          


Gly Gly Ser 
        35  


<210> 21
<211> 30
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<400> 21
Asp Pro Ala Leu Val His Gln Arg Pro Ala Pro Pro Gly Gly Gly Gly 
1               5                   10                  15      


Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly 
            20                  25                  30  


<210> 22
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 22
Gly Lys Pro Gly Ser 
1               5   


<210> 23
<211> 25
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 23
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser Gly Lys Pro Gly Ser 
            20                  25  


<210> 24
<211> 30
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<400> 24
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser 
            20                  25                  30  


<210> 25
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 25
Gly Gly Gly Glu Ser 
1               5   


<210> 26
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 26
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
1               5                   10                  15  


<210> 27
<211> 18
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 27
Gly Ser Thr Ser Gly Ser Gly Lys Pro Gly Ser Gly Glu Gly Ser Thr 
1               5                   10                  15      


Lys Gly 
        


<210> 28
<211> 14
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 28
Ile Arg Pro Arg Ala Ile Gly Gly Ser Lys Pro Arg Val Ala 
1               5                   10                  


<210> 29
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 29
Gly Lys Gly Gly Ser Gly Lys Gly Gly Ser Gly Lys Gly Gly Ser 
1               5                   10                  15  


<210> 30
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 30
Gly Gly Lys Gly Ser Gly Gly Lys Gly Ser Gly Gly Lys Gly Ser 
1               5                   10                  15  


<210> 31
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 31
Gly Gly Gly Lys Ser Gly Gly Gly Lys Ser Gly Gly Gly Lys Ser 
1               5                   10                  15  


<210> 32
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 32
Gly Lys Gly Lys Ser Gly Lys Gly Lys Ser Gly Lys Gly Lys Ser 
1               5                   10                  15  


<210> 33
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 33
Gly Gly Gly Lys Ser Gly Gly Lys Gly Ser Gly Lys Gly Gly Ser 
1               5                   10                  15  


<210> 34
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 34
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser 
1               5                   10                  15  


<210> 35
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 35
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 36
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 36
Gly Lys Gly Lys Ser Gly Lys Gly Lys Ser Gly Lys Gly Lys Ser Gly 
1               5                   10                  15      


Lys Gly Lys Ser 
            20  


<210> 37
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 37
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser 
            20  


<210> 38
<211> 14
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 38
Ser Thr Ala Gly Asp Thr His Leu Gly Gly Glu Asp Phe Asp 
1               5                   10                  


<210> 39
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 39
Gly Glu Gly Gly Ser Gly Glu Gly Gly Ser Gly Glu Gly Gly Ser 
1               5                   10                  15  


<210> 40
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 40
Gly Gly Glu Gly Ser Gly Gly Glu Gly Ser Gly Gly Glu Gly Ser 
1               5                   10                  15  


<210> 41
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 41
Gly Gly Gly Glu Ser Gly Gly Gly Glu Ser Gly Gly Gly Glu Ser 
1               5                   10                  15  


<210> 42
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 42
Gly Glu Gly Glu Ser Gly Glu Gly Glu Ser Gly Glu Gly Glu Ser 
1               5                   10                  15  


<210> 43
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 43
Gly Gly Gly Glu Ser Gly Gly Glu Gly Ser Gly Glu Gly Gly Ser 
1               5                   10                  15  


<210> 44
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 44
Gly Glu Gly Glu Ser Gly Glu Gly Glu Ser Gly Glu Gly Glu Ser Gly 
1               5                   10                  15      


Glu Gly Glu Ser 
            20  


<210> 45
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 45
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
1               5                   10                  15  


<210> 46
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 46
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly Ser 
            20  


<210> 47
<211> 18
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 47
Gly Ser Thr Ser Gly Ser Gly Lys Pro Gly Ser Gly Glu Gly Ser Thr 
1               5                   10                  15      


Lys Gly 
        


<210> 48
<211> 19
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 48
Pro Arg Gly Ala Ser Lys Ser Gly Ser Ala Ser Gln Thr Gly Ser Ala 
1               5                   10                  15      


Pro Gly Ser 
            


<210> 49
<211> 19
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 49
Gly Thr Ala Ala Ala Gly Ala Gly Ala Ala Gly Gly Ala Ala Ala Gly 
1               5                   10                  15      


Ala Ala Gly 
            


<210> 50
<211> 19
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 50
Gly Thr Ser Gly Ser Ser Gly Ser Gly Ser Gly Gly Ser Gly Ser Gly 
1               5                   10                  15      


Gly Gly Gly 
            


<210> 51
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<400> 51
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 52
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 1 IL-15/Ralpha-Fc monomer 1

<400> 52
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 53
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 1 IL-15/Ralpha-Fc monomer 2

<400> 53
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 54
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 2 IL-15/Ralpha-Fc monomer 1

<400> 54
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 55
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 2 IL-15/Ralpha-Fc monomer 2

<400> 55
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 56
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 3 IL-15/Ralpha-Fc monomer 1

<400> 56
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 57
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 3 IL-15/Ralpha-Fc monomer 2

<400> 57
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Glu Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 58
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 4 IL-15/Ralpha-Fc monomer 1

<400> 58
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Lys Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 59
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 4 IL-15/Ralpha-Fc monomer 2

<400> 59
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Glu 
    130                 135                 140                 


Asn Glu Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Glu Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 60
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 5 IL-15/Ralpha-Fc monomer 1

<400> 60
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Asp Gln Leu Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 61
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 5 IL-15/Ralpha-Fc monomer 2

<400> 61
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Asp Glu Leu Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 62
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 6 IL-15/Ralpha-Fc monomer 1

<400> 62
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Ala Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 63
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 6 IL-15/Ralpha-Fc monomer 2

<400> 63
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Ala Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 64
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 7 IL-15/Ralpha-Fc monomer 1

<400> 64
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Ser Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 65
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 7 IL-15/Ralpha-Fc monomer 2

<400> 65
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Ser Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 66
<211> 229
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 8 IL-15/Ralpha-Fc monomer 1

<400> 66
Glu Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe 
1               5                   10                  15      


Leu Gly Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
            20                  25                  30          


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
        35                  40                  45              


Ser Gln Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val 
    50                  55                  60                  


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser 
65                  70                  75                  80  


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
                85                  90                  95      


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ser 
            100                 105                 110         


Ser Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
        115                 120                 125             


Gln Val Tyr Thr Leu Pro Pro Ser Gln Glu Gln Met Thr Lys Asn Gln 
    130                 135                 140                 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
145                 150                 155                 160 


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
                165                 170                 175     


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Arg Leu 
            180                 185                 190         


Thr Val Asp Lys Ser Arg Trp Gln Glu Gly Asn Val Phe Ser Cys Ser 
        195                 200                 205             


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
    210                 215                 220                 


Leu Ser Leu Gly Lys 
225                 


<210> 67
<211> 229
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 8 IL-15/Ralpha-Fc monomer 2

<400> 67
Glu Ser Lys Tyr Gly Pro Pro Cys Pro Pro Cys Pro Ala Pro Glu Phe 
1               5                   10                  15      


Leu Gly Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
            20                  25                  30          


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
        35                  40                  45              


Ser Gln Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val 
    50                  55                  60                  


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Phe Asn Ser 
65                  70                  75                  80  


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
                85                  90                  95      


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ser 
            100                 105                 110         


Ser Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
        115                 120                 125             


Gln Val Tyr Thr Leu Pro Pro Ser Gln Glu Glu Met Thr Lys Asn Gln 
    130                 135                 140                 


Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala 
145                 150                 155                 160 


Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
                165                 170                 175     


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Arg Leu 
            180                 185                 190         


Thr Val Asp Lys Ser Arg Trp Glu Glu Gly Asp Val Phe Ser Cys Ser 
        195                 200                 205             


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
    210                 215                 220                 


Leu Ser Leu Gly Lys 
225                 


<210> 68
<211> 228
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 9 IL-15/Ralpha-Fc monomer 1

<400> 68
Glu Arg Lys Cys Cys Val Glu Cys Pro Pro Cys Pro Ala Pro Pro Val 
1               5                   10                  15      


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
            20                  25                  30          


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser 
        35                  40                  45              


His Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu 
    50                  55                  60                  


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr 
65                  70                  75                  80  


Phe Arg Val Val Ser Val Leu Thr Val Val His Gln Asp Trp Leu Asn 
                85                  90                  95      


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ala Pro 
            100                 105                 110         


Ile Glu Lys Thr Ile Ser Lys Thr Lys Gly Gln Pro Arg Glu Pro Gln 
        115                 120                 125             


Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val 
    130                 135                 140                 


Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
145                 150                 155                 160 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
                165                 170                 175     


Pro Met Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
            180                 185                 190         


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
        195                 200                 205             


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
    210                 215                 220                 


Ser Pro Gly Lys 
225             


<210> 69
<211> 228
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 9 IL-15/Ralpha-Fc monomer 2

<400> 69
Glu Arg Lys Cys Cys Val Glu Cys Pro Pro Cys Pro Ala Pro Pro Val 
1               5                   10                  15      


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
            20                  25                  30          


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Ser 
        35                  40                  45              


His Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu 
    50                  55                  60                  


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Phe Asn Ser Thr 
65                  70                  75                  80  


Phe Arg Val Val Ser Val Leu Thr Val Val His Gln Asp Trp Leu Asn 
                85                  90                  95      


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ala Pro 
            100                 105                 110         


Ile Glu Lys Thr Ile Ser Lys Thr Lys Gly Gln Pro Arg Glu Pro Gln 
        115                 120                 125             


Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val 
    130                 135                 140                 


Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val 
145                 150                 155                 160 


Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
                165                 170                 175     


Pro Met Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
            180                 185                 190         


Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val 
        195                 200                 205             


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
    210                 215                 220                 


Ser Pro Gly Lys 
225             


<210> 70
<211> 228
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 10 IL-15/Ralpha-Fc monomer 1

<400> 70
Glu Arg Lys Cys Cys Val Glu Cys Pro Pro Cys Pro Ala Pro Pro Val 
1               5                   10                  15      


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
            20                  25                  30          


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
        35                  40                  45              


His Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu 
    50                  55                  60                  


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Phe Asn Ser Thr 
65                  70                  75                  80  


Phe Arg Val Val Ser Val Leu Thr Val Val His Gln Asp Trp Leu Asn 
                85                  90                  95      


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ala Pro 
            100                 105                 110         


Ile Glu Lys Thr Ile Ser Lys Thr Lys Gly Gln Pro Arg Glu Pro Gln 
        115                 120                 125             


Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val 
    130                 135                 140                 


Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
145                 150                 155                 160 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
                165                 170                 175     


Pro Met Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
            180                 185                 190         


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
        195                 200                 205             


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
    210                 215                 220                 


Ser Pro Gly Lys 
225             


<210> 71
<211> 228
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 10 IL-15/Ralpha-Fc monomer 2

<400> 71
Glu Arg Lys Cys Cys Val Glu Cys Pro Pro Cys Pro Ala Pro Pro Val 
1               5                   10                  15      


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
            20                  25                  30          


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
        35                  40                  45              


His Glu Asp Pro Glu Val Gln Phe Asn Trp Tyr Val Asp Gly Val Glu 
    50                  55                  60                  


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Phe Asn Ser Thr 
65                  70                  75                  80  


Phe Arg Val Val Ser Val Leu Thr Val Val His Gln Asp Trp Leu Asn 
                85                  90                  95      


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Gly Leu Pro Ala Pro 
            100                 105                 110         


Ile Glu Lys Thr Ile Ser Lys Thr Lys Gly Gln Pro Arg Glu Pro Gln 
        115                 120                 125             


Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val 
    130                 135                 140                 


Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val 
145                 150                 155                 160 


Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
                165                 170                 175     


Pro Met Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
            180                 185                 190         


Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val 
        195                 200                 205             


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
    210                 215                 220                 


Ser Pro Gly Lys 
225             


<210> 72
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 11 IL-15/Ralpha-Fc monomer 1

<400> 72
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 73
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 11 IL-15/Ralpha-Fc monomer 2

<400> 73
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 74
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 12 IL-15/Ralpha-Fc monomer 1

<400> 74
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 75
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 12 IL-15/Ralpha-Fc monomer 2

<400> 75
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 76
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 13 IL-15/Ralpha-Fc monomer 1

<400> 76
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 77
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha-Fc Backbone 13 IL-15/Ralpha-Fc monomer 2

<400> 77
Glu Arg Lys Ser Ser Asp Lys Thr His Thr Cys Pro Arg Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Lys Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 78
<211> 329
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 1 Chain 1

<400> 78
Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys 
1               5                   10                  15      


Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr 
            20                  25                  30          


Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser 
        35                  40                  45              


Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser 
    50                  55                  60                  


Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr 
65                  70                  75                  80  


Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys 
                85                  90                  95      


Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys 
            100                 105                 110         


Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys 
        115                 120                 125             


Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val 
    130                 135                 140                 


Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr 
145                 150                 155                 160 


Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu 
                165                 170                 175     


Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His 
            180                 185                 190         


Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys 
        195                 200                 205             


Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln 
    210                 215                 220                 


Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met 
225                 230                 235                 240 


Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro 
                245                 250                 255     


Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn 
            260                 265                 270         


Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu 
        275                 280                 285             


Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val 
    290                 295                 300                 


Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln 
305                 310                 315                 320 


Lys Ser Leu Ser Leu Ser Pro Gly Lys 
                325                 


<210> 79
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 1 Chain 2

<400> 79
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 80
<211> 329
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 2 Chain 1

<400> 80
Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys 
1               5                   10                  15      


Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr 
            20                  25                  30          


Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser 
        35                  40                  45              


Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser 
    50                  55                  60                  


Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr 
65                  70                  75                  80  


Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asp Thr Lys Val Asp Lys 
                85                  90                  95      


Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys 
            100                 105                 110         


Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys 
        115                 120                 125             


Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val 
    130                 135                 140                 


Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr 
145                 150                 155                 160 


Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu 
                165                 170                 175     


Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His 
            180                 185                 190         


Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys 
        195                 200                 205             


Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln 
    210                 215                 220                 


Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met 
225                 230                 235                 240 


Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro 
                245                 250                 255     


Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn 
            260                 265                 270         


Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu 
        275                 280                 285             


Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val 
    290                 295                 300                 


Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln 
305                 310                 315                 320 


Lys Ser Leu Ser Leu Ser Pro Gly Lys 
                325                 


<210> 81
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 2 Chain 2

<400> 81
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 82
<211> 329
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 3 Chain 1

<400> 82
Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys 
1               5                   10                  15      


Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr 
            20                  25                  30          


Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser 
        35                  40                  45              


Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser 
    50                  55                  60                  


Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr 
65                  70                  75                  80  


Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asp Thr Lys Val Asp Lys 
                85                  90                  95      


Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys 
            100                 105                 110         


Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys 
        115                 120                 125             


Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val 
    130                 135                 140                 


Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr 
145                 150                 155                 160 


Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu 
                165                 170                 175     


Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His 
            180                 185                 190         


Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys 
        195                 200                 205             


Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln 
    210                 215                 220                 


Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met 
225                 230                 235                 240 


Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro 
                245                 250                 255     


Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn 
            260                 265                 270         


Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu 
        275                 280                 285             


Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val 
    290                 295                 300                 


Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln 
305                 310                 315                 320 


Lys Ser Leu Ser Leu Ser Pro Gly Lys 
                325                 


<210> 83
<211> 329
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> IL-15/Ralpha x anti-ICOS Backbone 3 Chain 2

<400> 83
Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys 
1               5                   10                  15      


Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr 
            20                  25                  30          


Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser 
        35                  40                  45              


Gly Val His Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser 
    50                  55                  60                  


Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Lys Thr 
65                  70                  75                  80  


Tyr Thr Cys Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys 
                85                  90                  95      


Lys Val Glu Arg Lys Ser Cys Asp Lys Thr His Thr Cys Pro Arg Cys 
            100                 105                 110         


Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys 
        115                 120                 125             


Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val 
    130                 135                 140                 


Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Lys Trp Tyr 
145                 150                 155                 160 


Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu 
                165                 170                 175     


Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His 
            180                 185                 190         


Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys 
        195                 200                 205             


Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln 
    210                 215                 220                 


Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met 
225                 230                 235                 240 


Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro 
                245                 250                 255     


Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn 
            260                 265                 270         


Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu 
        275                 280                 285             


Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val 
    290                 295                 300                 


Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln 
305                 310                 315                 320 


Lys Ser Leu Ser Leu Ser Pro Gly Lys 
                325                 


<210> 84
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> Constant Light Chain - Kappa

<400> 84
Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
1               5                   10                  15      


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
            20                  25                  30          


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
        35                  40                  45              


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
    50                  55                  60                  


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
65                  70                  75                  80  


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
                85                  90                  95      


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
            100                 105         


<210> 85
<211> 106
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> Constant Light Chain - Lambda

<400> 85
Gly Gln Pro Lys Ala Ala Pro Ser Val Thr Leu Phe Pro Pro Ser Ser 
1               5                   10                  15      


Glu Glu Leu Gln Ala Asn Lys Ala Thr Leu Val Cys Leu Ile Ser Asp 
            20                  25                  30          


Phe Tyr Pro Gly Ala Val Thr Val Ala Trp Lys Ala Asp Ser Ser Pro 
        35                  40                  45              


Val Lys Ala Gly Val Glu Thr Thr Thr Pro Ser Lys Gln Ser Asn Asn 
    50                  55                  60                  


Lys Tyr Ala Ala Ser Ser Tyr Leu Ser Leu Thr Pro Glu Gln Trp Lys 
65                  70                  75                  80  


Ser His Arg Ser Tyr Ser Cys Gln Val Thr His Glu Gly Ser Thr Val 
                85                  90                  95      


Glu Lys Thr Val Ala Pro Thr Glu Cys Ser 
            100                 105     


<210> 86
<211> 350
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP20818 Chain 1 - human_IL15_(GGGGS)1_Fc(216)_IgG1_pI(-)
      _Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 86
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His 
        115                 120                 125             


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
    130                 135                 140                 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
145                 150                 155                 160 


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
                165                 170                 175     


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
            180                 185                 190         


Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
        195                 200                 205             


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
    210                 215                 220                 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
225                 230                 235                 240 


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
                245                 250                 255     


Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val 
            260                 265                 270         


Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly 
        275                 280                 285             


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
    290                 295                 300                 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
305                 310                 315                 320 


Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met His Glu Ala Leu His 
                325                 330                 335     


Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
            340                 345                 350 


<210> 87
<211> 301
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP20818 Chain 2 - human_IL15Ralpha(Sushi)_(GGGGS)1_Fc(216)
      _IgG1_C220S/PVA_/S267K/S364K/E357Q

<400> 87
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His Thr 
65                  70                  75                  80  


Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu 
                85                  90                  95      


Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu 
            100                 105                 110         


Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys 
        115                 120                 125             


Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys 
    130                 135                 140                 


Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu 
145                 150                 155                 160 


Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys 
                165                 170                 175     


Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys 
            180                 185                 190         


Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser 
        195                 200                 205             


Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys 
    210                 215                 220                 


Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln 
225                 230                 235                 240 


Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly 
                245                 250                 255     


Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln 
            260                 265                 270         


Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His Asn 
        275                 280                 285             


His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
    290                 295                 300     


<210> 88
<211> 440
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP21478 Chain 1 - human_IL15Ralpha(sushi)_(GGGGS)6-human
      _IL15-Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S (16478)

<400> 88
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn 
                85                  90                  95      


Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln 
            100                 105                 110         


Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro 
        115                 120                 125             


Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val 
    130                 135                 140                 


Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu Asn 
145                 150                 155                 160 


Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr 
                165                 170                 175     


Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys 
            180                 185                 190         


Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn Thr 
        195                 200                 205             


Ser Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro 
    210                 215                 220                 


Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro 
225                 230                 235                 240 


Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val 
                245                 250                 255     


Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val 
            260                 265                 270         


Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu 
        275                 280                 285             


Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln 
    290                 295                 300                 


Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala 
305                 310                 315                 320 


Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro 
                325                 330                 335     


Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr 
            340                 345                 350         


Lys Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser 
        355                 360                 365             


Asp Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr 
    370                 375                 380                 


Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr 
385                 390                 395                 400 


Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe 
                405                 410                 415     


Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys 
            420                 425                 430         


Ser Leu Ser Leu Ser Pro Gly Lys 
        435                 440 


<210> 89
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP21478 Chain 2 - empty-Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q (8924)

<400> 89
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 90
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021993 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S

<400> 90
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asn Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 91
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021993 Chain 2 - empty_Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q

<400> 91
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 92
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP21479 Chain 1 - human_IL15_no_tag (16484)

<400> 92
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 93
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP21479 Chain 2 - empty-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S (8793)

<400> 93
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Ser Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 94
<211> 296
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP21479 Chain 3 - human_IL15Ralpha(Sushi)-Fc(216)_IgG1
      _C220S/PVA_/S267K/S364K/E357Q (16481)

<400> 94
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro 
65                  70                  75                  80  


Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro 
                85                  90                  95      


Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val 
            100                 105                 110         


Val Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val 
        115                 120                 125             


Asp Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln 
    130                 135                 140                 


Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln 
145                 150                 155                 160 


Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala 
                165                 170                 175     


Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro 
            180                 185                 190         


Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr 
        195                 200                 205             


Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser 
    210                 215                 220                 


Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr 
225                 230                 235                 240 


Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr 
                245                 250                 255     


Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe 
            260                 265                 270         


Ser Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys 
        275                 280                 285             


Ser Leu Ser Leu Ser Pro Gly Lys 
    290                 295     


<210> 95
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D

<400> 95
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 96
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D

<400> 96
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 97
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D8N

<400> 97
Asn Trp Val Asn Val Ile Ser Asn Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 98
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D30N

<400> 98
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 99
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D61N

<400> 99
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 100
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> E64Q

<400> 100
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 101
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N65D

<400> 101
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 102
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> Q108E

<400> 102
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 103
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/D61N

<400> 103
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 104
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/E64Q

<400> 104
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 105
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/D61N

<400> 105
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 106
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/E64Q

<400> 106
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 107
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D8N/D61N

<400> 107
Asn Trp Val Asn Val Ile Ser Asn Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 108
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D8N/E64Q

<400> 108
Asn Trp Val Asn Val Ile Ser Asn Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 109
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D61N/E64Q

<400> 109
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 110
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> E64Q/Q108E

<400> 110
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 111
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/N4D/D8N

<400> 111
Asp Trp Val Asp Val Ile Ser Asn Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 112
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D61N/E64Q/N65D

<400> 112
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Gln 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 113
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/D61N/E64Q/Q108E

<400> 113
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 114
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/D61N/E64Q/Q108E

<400> 114
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 115
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/N65D

<400> 115
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 116
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/Q108E

<400> 116
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 117
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/N65D

<400> 117
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 118
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/D30N

<400> 118
Asp Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 119
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/D30N

<400> 119
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 120
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D30N/E64Q

<400> 120
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 121
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D30N/N65D

<400> 121
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 122
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D30N/Q108E

<400> 122
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 123
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N65D/Q108E

<400> 123
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Glu Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 124
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> E64Q/N65D

<400> 124
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 125
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1D/N4D/N65D

<400> 125
Asp Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 126
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D30N/E64Q/N65D

<400> 126
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 127
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N4D/D61N/N65D

<400> 127
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asn Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 128
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> V49R

<400> 128
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Arg Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 129
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1G/D30N/E46G/V49R/E64Q

<400> 129
Gly Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Gly Leu Gln 
        35                  40                  45              


Arg Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 130
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> N1A/D30N/E46G/V49R

<400> 130
Ala Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Gly Leu Gln 
        35                  40                  45              


Arg Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 131
<211> 114
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> D22N/Y26F/E46Q/E53Q/E89Q/E93Q

<400> 131
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asn Ala Thr Leu Phe Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Gln Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Gln Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Gln Glu Leu Glu Gln Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser 
        


<210> 132
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29281 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human_IL15
      _D30N_(single-Chain)-Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S

<400> 132
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asn Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 133
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29281 Chain 2 - empty-Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q

<400> 133
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 134
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24050 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human_IL15
      _N4D/N65D_(single-Chain)-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 134
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 135
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24050 Chain 2 - empty-Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q

<400> 135
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 136
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29285 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human_IL15
      _D30N/N65D_(single-Chain)-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 136
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 137
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29285 Chain 2 - empty-Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q

<400> 137
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 138
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29286 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human_IL15
      _D30N/E64Q/N65D_(single-Chain)-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 138
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 139
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29286 Chain 2 - empty-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 139
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 140
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> [ICOS]_H0 Variable Heavy

<400> 140
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 141
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> [ICOS]_L0 Variable Light

<400> 141
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 142
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> [ICOS]_H0.66 Variable Heavy

<400> 142
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 143
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> [ICOS]_L0 Variable Light

<400> 143
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 144
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29975 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 144
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 145
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29975 Chain 2 -  [aICOS]_H0.66_IgG1_PVA_/S267K/S364K/E357Q

<400> 145
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 146
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29975 Chain 3 -  [aICOS]_L0 LC

<400> 146
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 147
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29978 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 147
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 148
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29978 Chain 2 -  [aICOS]_H0.66_IgG1_PVA_/S267K/S364K/E357Q

<400> 148
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 149
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29978 Chain 3 -  [aICOS]_L0 LC

<400> 149
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 150
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30810 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 150
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 151
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30810 Chain 2 -  [alphaICOS]_H0.66_IgG1_PVA
      _/S267K/S364K/E357Q

<400> 151
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 152
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30810 Chain 3 -  [alphaICOS]_L0

<400> 152
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 153
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30811 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 153
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu 
                405                 410                 415     


His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 154
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30811 Chain 2 -  [alphaICOS]_H0.66_IgG1_PVA
      _/S267K/S364K/E357Q/M428L/N434S

<400> 154
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 155
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30811 Chain 3 -  [alphaICOS]_L0

<400> 155
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 156
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30812 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 156
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu 
                405                 410                 415     


His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 157
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30812 Chain 2 -  [alphaICOS]_H0.66_IgG1_PVA
      _/S267K/S364K/E357Q/M428L/N434S

<400> 157
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 158
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30812 Chain 3 -  [alphaICOS]_L0

<400> 158
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 159
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30813 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 159
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu 
                405                 410                 415     


His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 160
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30813 Chain 2 -  [alphaICOS]_H0.66_IgG1_PVA
      _/S267K/S364K/E357Q/M428L/N434S

<400> 160
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 161
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30813 Chain 3 -  [alphaICOS]_L0

<400> 161
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 162
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP26007 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-Chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S scIL-15/Ralpha-Fc Chain

<400> 162
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 163
<211> 449
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP26007 Chain 2 - Numax_IgG1_PVA
      _/S267K/S364K/E357Q Heavy Chain

<400> 163
Gln Val Thr Leu Arg Glu Ser Gly Pro Ala Leu Val Lys Pro Thr Gln 
1               5                   10                  15      


Thr Leu Thr Leu Thr Cys Thr Phe Ser Gly Phe Ser Leu Ser Thr Ala 
            20                  25                  30          


Gly Met Ser Val Gly Trp Ile Arg Gln Pro Pro Gly Lys Ala Leu Glu 
        35                  40                  45              


Trp Leu Ala Asp Ile Trp Trp Asp Asp Lys Lys His Tyr Asn Pro Ser 
    50                  55                  60                  


Leu Lys Asp Arg Leu Thr Ile Ser Lys Asp Thr Ser Lys Asn Gln Val 
65                  70                  75                  80  


Val Leu Lys Val Thr Asn Met Asp Pro Ala Asp Thr Ala Thr Tyr Tyr 
                85                  90                  95      


Cys Ala Arg Asp Met Ile Phe Asn Phe Tyr Phe Asp Val Trp Gly Gln 
            100                 105                 110         


Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val 
        115                 120                 125             


Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala 
    130                 135                 140                 


Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser 
145                 150                 155                 160 


Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val 
                165                 170                 175     


Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro 
            180                 185                 190         


Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys 
        195                 200                 205             


Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp 
    210                 215                 220                 


Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro 
225                 230                 235                 240 


Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser 
                245                 250                 255     


Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp 
            260                 265                 270         


Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn 
        275                 280                 285             


Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val 
    290                 295                 300                 


Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu 
305                 310                 315                 320 


Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys 
                325                 330                 335     


Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr 
            340                 345                 350         


Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr 
        355                 360                 365             


Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu 
    370                 375                 380                 


Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu 
385                 390                 395                 400 


Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys 
                405                 410                 415     


Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu 
            420                 425                 430         


Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly 
        435                 440                 445             


Lys 
    


<210> 164
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP26007 Chain 3 - Numax Light Chain

<400> 164
Asp Ile Gln Met Thr Gln Ser Pro Ser Thr Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Ser Arg Val Gly Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro Asp 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Phe Thr 
                85                  90                  95      


Phe Gly Gly Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 165
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29481 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S

<400> 165
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 166
<211> 449
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29481 Chain 2 -  Numax_IgG1_PVA_/S267K/S364K/E357Q

<400> 166
Gln Val Thr Leu Arg Glu Ser Gly Pro Ala Leu Val Lys Pro Thr Gln 
1               5                   10                  15      


Thr Leu Thr Leu Thr Cys Thr Phe Ser Gly Phe Ser Leu Ser Thr Ala 
            20                  25                  30          


Gly Met Ser Val Gly Trp Ile Arg Gln Pro Pro Gly Lys Ala Leu Glu 
        35                  40                  45              


Trp Leu Ala Asp Ile Trp Trp Asp Asp Lys Lys His Tyr Asn Pro Ser 
    50                  55                  60                  


Leu Lys Asp Arg Leu Thr Ile Ser Lys Asp Thr Ser Lys Asn Gln Val 
65                  70                  75                  80  


Val Leu Lys Val Thr Asn Met Asp Pro Ala Asp Thr Ala Thr Tyr Tyr 
                85                  90                  95      


Cys Ala Arg Asp Met Ile Phe Asn Phe Tyr Phe Asp Val Trp Gly Gln 
            100                 105                 110         


Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val 
        115                 120                 125             


Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala 
    130                 135                 140                 


Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser 
145                 150                 155                 160 


Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val 
                165                 170                 175     


Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro 
            180                 185                 190         


Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys 
        195                 200                 205             


Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp 
    210                 215                 220                 


Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro 
225                 230                 235                 240 


Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser 
                245                 250                 255     


Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp 
            260                 265                 270         


Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn 
        275                 280                 285             


Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val 
    290                 295                 300                 


Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu 
305                 310                 315                 320 


Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys 
                325                 330                 335     


Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr 
            340                 345                 350         


Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr 
        355                 360                 365             


Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu 
    370                 375                 380                 


Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu 
385                 390                 395                 400 


Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys 
                405                 410                 415     


Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu 
            420                 425                 430         


Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly 
        435                 440                 445             


Lys 
    


<210> 167
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP29481 Chain 3 -  Numax LC

<400> 167
Asp Ile Gln Met Thr Gln Ser Pro Ser Thr Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Ser Arg Val Gly Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro Asp 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Phe Thr 
                85                  90                  95      


Phe Gly Gly Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 168
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30432 Chain 1 -  human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 168
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 169
<211> 449
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30432 Chain 2 -  Numax_VH_IgG1_IgG1_PVA_/S267K/S364K/E357Q

<400> 169
Gln Val Thr Leu Arg Glu Ser Gly Pro Ala Leu Val Lys Pro Thr Gln 
1               5                   10                  15      


Thr Leu Thr Leu Thr Cys Thr Phe Ser Gly Phe Ser Leu Ser Thr Ala 
            20                  25                  30          


Gly Met Ser Val Gly Trp Ile Arg Gln Pro Pro Gly Lys Ala Leu Glu 
        35                  40                  45              


Trp Leu Ala Asp Ile Trp Trp Asp Asp Lys Lys His Tyr Asn Pro Ser 
    50                  55                  60                  


Leu Lys Asp Arg Leu Thr Ile Ser Lys Asp Thr Ser Lys Asn Gln Val 
65                  70                  75                  80  


Val Leu Lys Val Thr Asn Met Asp Pro Ala Asp Thr Ala Thr Tyr Tyr 
                85                  90                  95      


Cys Ala Arg Asp Met Ile Phe Asn Phe Tyr Phe Asp Val Trp Gly Gln 
            100                 105                 110         


Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val 
        115                 120                 125             


Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala 
    130                 135                 140                 


Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser 
145                 150                 155                 160 


Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val 
                165                 170                 175     


Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro 
            180                 185                 190         


Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys 
        195                 200                 205             


Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp 
    210                 215                 220                 


Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro 
225                 230                 235                 240 


Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser 
                245                 250                 255     


Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp 
            260                 265                 270         


Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn 
        275                 280                 285             


Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val 
    290                 295                 300                 


Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu 
305                 310                 315                 320 


Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys 
                325                 330                 335     


Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr 
            340                 345                 350         


Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr 
        355                 360                 365             


Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu 
    370                 375                 380                 


Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu 
385                 390                 395                 400 


Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys 
                405                 410                 415     


Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu 
            420                 425                 430         


Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly 
        435                 440                 445             


Lys 
    


<210> 170
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP30432 Chain 3 -  Numax LC

<400> 170
Asp Ile Gln Met Thr Gln Ser Pro Ser Thr Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Ser Arg Val Gly Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro Asp 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Phe Thr 
                85                  90                  95      


Phe Gly Gly Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 171
<211> 350
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP22853 Chain 1 - human_IL15_(GGGGS)1-Fc(216)_IgG1_pI(-)
      _Isosteric_A_C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 171
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asn Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His 
        115                 120                 125             


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
    130                 135                 140                 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
145                 150                 155                 160 


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
                165                 170                 175     


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
            180                 185                 190         


Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
        195                 200                 205             


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
    210                 215                 220                 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
225                 230                 235                 240 


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
                245                 250                 255     


Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val 
            260                 265                 270         


Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly 
        275                 280                 285             


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
    290                 295                 300                 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
305                 310                 315                 320 


Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His 
                325                 330                 335     


Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
            340                 345                 350 


<210> 172
<211> 301
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP22853 Chain 2 - human_IL15Ra(Sushi)_(GGGGS)1-Fc(216)_IgG1
      _C220S/PVA_/S267K/S364K/E357Q/M428L/N434S

<400> 172
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His Thr 
65                  70                  75                  80  


Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu 
                85                  90                  95      


Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu 
            100                 105                 110         


Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys 
        115                 120                 125             


Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys 
    130                 135                 140                 


Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu 
145                 150                 155                 160 


Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys 
                165                 170                 175     


Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys 
            180                 185                 190         


Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser 
        195                 200                 205             


Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys 
    210                 215                 220                 


Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln 
225                 230                 235                 240 


Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly 
                245                 250                 255     


Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln 
            260                 265                 270         


Gln Gly Asn Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His Ser 
        275                 280                 285             


His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
    290                 295                 300     


<210> 173
<211> 350
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24113 Chain 1 - human_IL15_N4D/N65D_(GGGGS)1-Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 173
Asn Trp Val Asp Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asp Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Glu 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His 
        115                 120                 125             


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
    130                 135                 140                 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
145                 150                 155                 160 


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
                165                 170                 175     


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
            180                 185                 190         


Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
        195                 200                 205             


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
    210                 215                 220                 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
225                 230                 235                 240 


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
                245                 250                 255     


Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val 
            260                 265                 270         


Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly 
        275                 280                 285             


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
    290                 295                 300                 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
305                 310                 315                 320 


Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His 
                325                 330                 335     


Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
            340                 345                 350 


<210> 174
<211> 301
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24113 Chain 2 - human_IL15Ra(Sushi)_(GGGGS)1-Fc(216)_IgG1
      _C220S/PVA_/S267K/S364K/E357Q/M428L/N434S

<400> 174
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His Thr 
65                  70                  75                  80  


Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu 
                85                  90                  95      


Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu 
            100                 105                 110         


Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys 
        115                 120                 125             


Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys 
    130                 135                 140                 


Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu 
145                 150                 155                 160 


Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys 
                165                 170                 175     


Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys 
            180                 185                 190         


Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser 
        195                 200                 205             


Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys 
    210                 215                 220                 


Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln 
225                 230                 235                 240 


Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly 
                245                 250                 255     


Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln 
            260                 265                 270         


Gln Gly Asn Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His Ser 
        275                 280                 285             


His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
    290                 295                 300     


<210> 175
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24294 Chain 1 - human_IL15Ra(sushi)_(GGGGS)5-human_IL15
      _N4D/N65D_(single-Chain)-Fc(216)_IgG1_pI(-)_Isosteric_A
      _C220S/PVA_/S267K/L368D/K370S/M428L/N434S

<400> 175
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu 
                405                 410                 415     


His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 176
<211> 231
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24294 Chain 2 - empty-Fc(216)_IgG1_C220S/PVA
      _/S267K/S364K/E357Q/M428L/N434S

<400> 176
Glu Pro Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala 
1               5                   10                  15      


Pro Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys 
            20                  25                  30          


Asp Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val 
        35                  40                  45              


Asp Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp 
    50                  55                  60                  


Gly Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr 
65                  70                  75                  80  


Asn Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp 
                85                  90                  95      


Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu 
            100                 105                 110         


Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg 
        115                 120                 125             


Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys 
    130                 135                 140                 


Asn Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp 
145                 150                 155                 160 


Ile Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys 
                165                 170                 175     


Thr Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser 
            180                 185                 190         


Lys Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser 
        195                 200                 205             


Cys Ser Val Leu His Glu Ala Leu His Ser His Tyr Thr Gln Lys Ser 
    210                 215                 220                 


Leu Ser Leu Ser Pro Gly Lys 
225                 230     


<210> 177
<211> 350
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24306 Chain 1 - human_IL15_D30N/E64Q/N65D_(GGGGS)1-Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S/M428L/N434S

<400> 177
Asn Trp Val Asn Val Ile Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile 
1               5                   10                  15      


Gln Ser Met His Ile Asp Ala Thr Leu Tyr Thr Glu Ser Asn Val His 
            20                  25                  30          


Pro Ser Cys Lys Val Thr Ala Met Lys Cys Phe Leu Leu Glu Leu Gln 
        35                  40                  45              


Val Ile Ser Leu Glu Ser Gly Asp Ala Ser Ile His Asp Thr Val Gln 
    50                  55                  60                  


Asp Leu Ile Ile Leu Ala Asn Asn Ser Leu Ser Ser Asn Gly Asn Val 
65                  70                  75                  80  


Thr Glu Ser Gly Cys Lys Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile 
                85                  90                  95      


Lys Glu Phe Leu Gln Ser Phe Val His Ile Val Gln Met Phe Ile Asn 
            100                 105                 110         


Thr Ser Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His 
        115                 120                 125             


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
    130                 135                 140                 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
145                 150                 155                 160 


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
                165                 170                 175     


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
            180                 185                 190         


Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
        195                 200                 205             


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
    210                 215                 220                 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
225                 230                 235                 240 


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
                245                 250                 255     


Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu Thr Cys Asp Val 
            260                 265                 270         


Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asp Gly 
        275                 280                 285             


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
    290                 295                 300                 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
305                 310                 315                 320 


Glu Gln Gly Asp Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His 
                325                 330                 335     


Ser His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
            340                 345                 350 


<210> 178
<211> 301
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP24306 Chain 2 - human_IL15Ra(Sushi)_(GGGGS)1-Fc(216)_IgG1
      _C220S/PVA_/S267K/S364K/E357Q/M428L/N434S

<400> 178
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Glu Pro Lys Ser Ser Asp Lys Thr His Thr 
65                  70                  75                  80  


Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe Leu 
                85                  90                  95      


Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro Glu 
            100                 105                 110         


Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val Lys 
        115                 120                 125             


Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr Lys 
    130                 135                 140                 


Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val Leu 
145                 150                 155                 160 


Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys Lys 
                165                 170                 175     


Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser Lys 
            180                 185                 190         


Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro Ser 
        195                 200                 205             


Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val Lys 
    210                 215                 220                 


Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly Gln 
225                 230                 235                 240 


Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp Gly 
                245                 250                 255     


Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp Gln 
            260                 265                 270         


Gln Gly Asn Val Phe Ser Cys Ser Val Leu His Glu Ala Leu His Ser 
        275                 280                 285             


His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
    290                 295                 300     


<210> 179
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> Jmab-136[ICOS] variable heavy Chain

<400> 179
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 180
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable heavy Chain

<400> 180
Gly Tyr Tyr Met His 
1               5   


<210> 181
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable heavy Chain

<400> 181
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 182
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable heavy Chain

<400> 182
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 183
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> Jmab-136[ICOS] variable light Chain

<400> 183
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 184
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable light Chain

<400> 184
Arg Ala Ser Gln Gly Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 185
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable light Chain

<400> 185
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 186
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> Jmab-136[ICOS] variable light Chain

<400> 186
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 187
<211> 123
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> ICOS 314.8[ICOS] variable heavy Chain

<400> 187
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr 
        115                 120             


<210> 188
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable heavy Chain

<400> 188
Thr Tyr Trp Met His 
1               5   


<210> 189
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable heavy Chain

<400> 189
Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe Lys 
1               5                   10                  15      


Gly 
    


<210> 190
<211> 14
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable heavy Chain

<400> 190
Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
1               5                   10                  


<210> 191
<211> 112
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> ICOS 314.8[ICOS] variable light Chain

<400> 191
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


<210> 192
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable light Chain

<400> 192
Arg Ser Ser Lys Ser Pro Leu His Ser Asn Gly Asn Ile Tyr Leu Tyr 
1               5                   10                  15      


<210> 193
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable light Chain

<400> 193
Arg Met Ser Asn Leu Ala Ser 
1               5           


<210> 194
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS 314.8[ICOS] variable light Chain

<400> 194
Met Gln His Leu Glu Tyr Pro Tyr Thr 
1               5                   


<210> 195
<211> 121
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> H2L5[ICOS] variable heavy Chain

<400> 195
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser 
        115                 120     


<210> 196
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable heavy Chain

<400> 196
Asp Tyr Ala Met His 
1               5   


<210> 197
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable heavy Chain

<400> 197
Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 198
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable heavy Chain

<400> 198
Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val 
1               5                   10          


<210> 199
<211> 106
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> H2L5[ICOS] variable light Chain

<400> 199
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 
            100                 105     


<210> 200
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable light Chain

<400> 200
Ser Ala Ser Ser Ser Val Ser Tyr Met His 
1               5                   10  


<210> 201
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable light Chain

<400> 201
Asp Thr Ser Lys Leu Ala Ser 
1               5           


<210> 202
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> H2L5[ICOS] variable light Chain

<400> 202
Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
1               5                   


<210> 203
<211> 117
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> 37A10S713[ICOS] variable heavy Chain

<400> 203
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser 
        115         


<210> 204
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable heavy Chain

<400> 204
Asp Tyr Trp Met Asp 
1               5   


<210> 205
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable heavy Chain

<400> 205
Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val Lys 
1               5                   10                  15      


Gly 
    


<210> 206
<211> 8
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable heavy Chain

<400> 206
Trp Gly Arg Phe Gly Phe Asp Ser 
1               5               


<210> 207
<211> 111
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> 37A10S713[ICOS] variable light Chain

<400> 207
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys 
            100                 105                 110     


<210> 208
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable light Chain

<400> 208
Lys Ser Ser Gln Ser Leu Leu Ser Gly Ser Phe Asn Tyr Leu Thr 
1               5                   10                  15  


<210> 209
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable light Chain

<400> 209
Tyr Ala Ser Thr Arg His Thr 
1               5           


<210> 210
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> 37A10S713[ICOS] variable light Chain

<400> 210
His His His Tyr Asn Ala Pro Pro Thr 
1               5                   


<210> 211
<211> 121
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> C398.4A[ICOS] variable heavy Chain

<400> 211
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Ala Gly 
1               5                   10                  15      


Ser Leu Thr Leu Ser Cys Val Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ala Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Val Ser Arg Asp Asp Ser Gln Gly Met 
65                  70                  75                  80  


Val Tyr Leu Gln Met Asn Asn Leu Arg Lys Glu Asp Thr Ala Thr Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120     


<210> 212
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable heavy Chain

<400> 212
Asp Tyr Phe Met His 
1               5   


<210> 213
<211> 19
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable heavy Chain

<400> 213
Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp Leu 
1               5                   10                  15      


Val Lys Gly 
            


<210> 214
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable heavy Chain

<400> 214
Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr 
1               5                   10  


<210> 215
<211> 106
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> C398.4A[ICOS] variable light Chain

<400> 215
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Pro Ala Ser Leu Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Asn Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Asp Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Arg Asp Tyr Ser Phe Thr Ile Ser Ser Leu Glu Ser 
65                  70                  75                  80  


Glu Asp Ile Gly Ser Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Leu Glu Ile Lys 
            100                 105     


<210> 216
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable light Chain

<400> 216
Gln Ala Ser Gln Asp Ile Ser Asn Tyr Leu Ser 
1               5                   10      


<210> 217
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable light Chain

<400> 217
Tyr Thr Asn Leu Leu Ala Asp 
1               5           


<210> 218
<211> 8
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> C398.4A[ICOS] variable light Chain

<400> 218
Gln Gln Tyr Tyr Asn Tyr Arg Thr 
1               5               


<210> 219
<211> 121
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> ICOS.33[ICOS] variable heavy Chain

<400> 219
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr 
65                  70                  75                  80  


Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Leu Val Thr Val Ser Ser 
        115                 120     


<210> 220
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable heavy Chain

<400> 220
Asp Tyr Phe Met His 
1               5   


<210> 221
<211> 19
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable heavy Chain

<400> 221
Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp Leu 
1               5                   10                  15      


Val Lys Gly 
            


<210> 222
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable heavy Chain

<400> 222
Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr 
1               5                   10  


<210> 223
<211> 106
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> ICOS.33[ICOS] variable light Chain

<400> 223
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Glu Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Phe Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Ile Ala Thr Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Val Asp Ile Lys 
            100                 105     


<210> 224
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable light Chain

<400> 224
Gln Ala Ser Gln Asp Ile Ser Asn Tyr Leu Ser 
1               5                   10      


<210> 225
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable light Chain

<400> 225
Tyr Thr Asn Leu Leu Ala Glu 
1               5           


<210> 226
<211> 8
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> ICOS.33[ICOS] variable light Chain

<400> 226
Gln Gln Tyr Tyr Asn Tyr Arg Thr 
1               5               


<210> 227
<211> 121
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> STIM001[ICOS] variable heavy Chain

<400> 227
Gln Val Gln Val Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ser Thr Phe 
            20                  25                  30          


Gly Ile Thr Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Ser Ala Tyr Asn Gly Asp Thr Asn Tyr Ala Gln Asn Leu 
    50                  55                  60                  


Gln Gly Arg Val Ile Met Thr Thr Asp Thr Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Arg Ser Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Ser Ser Gly His Tyr Tyr Tyr Tyr Gly Met Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser 
        115                 120     


<210> 228
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable heavy Chain

<400> 228
Thr Phe Gly Ile Thr 
1               5   


<210> 229
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable heavy Chain

<400> 229
Trp Ile Ser Ala Tyr Asn Gly Asp Thr Asn Tyr Ala Gln Asn Leu Gln 
1               5                   10                  15      


Gly 
    


<210> 230
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable heavy Chain

<400> 230
Ser Ser Gly His Tyr Tyr Tyr Tyr Gly Met Asp Val 
1               5                   10          


<210> 231
<211> 112
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> STIM001[ICOS] variable light Chain

<400> 231
Asp Ile Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Leu Leu His Ser 
            20                  25                  30          


Asn Glu Tyr Asn Tyr Leu Asp Trp Tyr Leu Gln Lys Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Phe Leu Gly Ser Asn Arg Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Thr Arg Val Glu Ala Glu Asp Val Gly Ile Tyr Tyr Cys Met Gln Ser 
                85                  90                  95      


Leu Gln Thr Pro Leu Thr Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 
            100                 105                 110         


<210> 232
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable light Chain

<400> 232
Arg Ser Ser Gln Ser Leu Leu His Ser Asn Glu Tyr Asn Tyr Leu Asp 
1               5                   10                  15      


<210> 233
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable light Chain

<400> 233
Leu Gly Ser Asn Arg Ala Ser 
1               5           


<210> 234
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM001[ICOS] variable light Chain

<400> 234
Met Gln Ser Leu Gln Thr Pro Leu Thr 
1               5                   


<210> 235
<211> 124
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> STIM003[ICOS] variable heavy Chain

<400> 235
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Val Val Arg Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Val Ala Ser Gly Val Thr Phe Asp Asp Tyr 
            20                  25                  30          


Gly Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Gly Ile Asn Trp Asn Gly Gly Asp Thr Asp Tyr Ser Asp Ser Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Leu Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Asp Phe Tyr Gly Ser Gly Ser Tyr Tyr His Val Pro Phe Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Ile Leu Val Thr Val Ser Ser 
        115                 120                 


<210> 236
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable heavy Chain

<400> 236
Asp Tyr Gly Met Ser 
1               5   


<210> 237
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable heavy Chain

<400> 237
Gly Ile Asn Trp Asn Gly Gly Asp Thr Asp Tyr Ser Asp Ser Val Lys 
1               5                   10                  15      


Gly 
    


<210> 238
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable heavy Chain

<400> 238
Asp Phe Tyr Gly Ser Gly Ser Tyr Tyr His Val Pro Phe Asp Tyr 
1               5                   10                  15  


<210> 239
<211> 108
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> STIM003[ICOS] variable light Chain

<400> 239
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Arg Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Arg Gly Gln Ala Pro Arg Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Asp Gly Ser Gly Thr Asp Phe Thr Leu Ser Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys His Gln Tyr Asp Met Ser Pro 
                85                  90                  95      


Phe Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys 
            100                 105             


<210> 240
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable light Chain

<400> 240
Arg Ala Ser Gln Ser Val Ser Arg Ser Tyr Leu Ala 
1               5                   10          


<210> 241
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable light Chain

<400> 241
Gly Ala Ser Ser Arg Ala Thr 
1               5           


<210> 242
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> STIM003[ICOS] variable light Chain

<400> 242
His Gln Tyr Asp Met Ser Pro Phe Thr 
1               5                   


<210> 243
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 243
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 244
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - Jmab-136[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 244
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 245
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  Jmab-136[ICOS]_VL

<400> 245
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 246
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 246
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 247
<211> 452
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - ICOS 314.8[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 247
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr Ala Ser Thr Lys Gly 
        115                 120                 125             


Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly 
    130                 135                 140                 


Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val 
145                 150                 155                 160 


Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe 
                165                 170                 175     


Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val 
            180                 185                 190         


Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val 
        195                 200                 205             


Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys 
    210                 215                 220                 


Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val 
225                 230                 235                 240 


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
                245                 250                 255     


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
            260                 265                 270         


His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu 
        275                 280                 285             


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr 
    290                 295                 300                 


Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn 
305                 310                 315                 320 


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro 
                325                 330                 335     


Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln 
            340                 345                 350         


Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val 
        355                 360                 365             


Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
    370                 375                 380                 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
385                 390                 395                 400 


Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
                405                 410                 415     


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
            420                 425                 430         


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
        435                 440                 445             


Ser Pro Gly Lys 
    450         


<210> 248
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  ICOS 314.8[ICOS]_VL

<400> 248
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 249
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 249
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 250
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - H2L5[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 250
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 251
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  H2L5[ICOS]_VL

<400> 251
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 252
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 252
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 253
<211> 446
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - 37A10S713[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 253
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu 
        115                 120                 125             


Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys 
    130                 135                 140                 


Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser 
145                 150                 155                 160 


Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser 
                165                 170                 175     


Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser 
            180                 185                 190         


Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asn 
        195                 200                 205             


Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His 
    210                 215                 220                 


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
225                 230                 235                 240 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
                245                 250                 255     


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
            260                 265                 270         


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
        275                 280                 285             


Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
    290                 295                 300                 


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
305                 310                 315                 320 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
                325                 330                 335     


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
            340                 345                 350         


Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val 
        355                 360                 365             


Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly 
    370                 375                 380                 


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
385                 390                 395                 400 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
                405                 410                 415     


Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His 
            420                 425                 430         


Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
        435                 440                 445     


<210> 254
<211> 218
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  37A10S713[ICOS]_VL

<400> 254
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg 
            100                 105                 110         


Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln 
        115                 120                 125             


Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr 
    130                 135                 140                 


Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser 
145                 150                 155                 160 


Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr 
                165                 170                 175     


Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys 
            180                 185                 190         


His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro 
        195                 200                 205             


Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215             


<210> 255
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 255
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 256
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - C398.4A[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 256
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Ala Gly 
1               5                   10                  15      


Ser Leu Thr Leu Ser Cys Val Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ala Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Val Ser Arg Asp Asp Ser Gln Gly Met 
65                  70                  75                  80  


Val Tyr Leu Gln Met Asn Asn Leu Arg Lys Glu Asp Thr Ala Thr Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 257
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  C398.4A[ICOS]_VL

<400> 257
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Pro Ala Ser Leu Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Asn Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Asp Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Arg Asp Tyr Ser Phe Thr Ile Ser Ser Leu Glu Ser 
65                  70                  75                  80  


Glu Asp Ile Gly Ser Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 258
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 258
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 259
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - ICOS.33[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 259
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr 
65                  70                  75                  80  


Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 260
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  ICOS.33[ICOS]_VL

<400> 260
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Glu Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Phe Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Ile Ala Thr Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 261
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 261
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 262
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM001[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 262
Gln Val Gln Val Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ser Thr Phe 
            20                  25                  30          


Gly Ile Thr Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Ser Ala Tyr Asn Gly Asp Thr Asn Tyr Ala Gln Asn Leu 
    50                  55                  60                  


Gln Gly Arg Val Ile Met Thr Thr Asp Thr Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Arg Ser Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Ser Ser Gly His Tyr Tyr Tyr Tyr Gly Met Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 263
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM001[ICOS]_VL

<400> 263
Asp Ile Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Leu Leu His Ser 
            20                  25                  30          


Asn Glu Tyr Asn Tyr Leu Asp Trp Tyr Leu Gln Lys Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Phe Leu Gly Ser Asn Arg Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Thr Arg Val Glu Ala Glu Asp Val Gly Ile Tyr Tyr Cys Met Gln Ser 
                85                  90                  95      


Leu Gln Thr Pro Leu Thr Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 264
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(N4D/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 264
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asp Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asp Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 265
<211> 453
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM003[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 265
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Val Val Arg Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Val Ala Ser Gly Val Thr Phe Asp Asp Tyr 
            20                  25                  30          


Gly Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Gly Ile Asn Trp Asn Gly Gly Asp Thr Asp Tyr Ser Asp Ser Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Leu Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Asp Phe Tyr Gly Ser Gly Ser Tyr Tyr His Val Pro Phe Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Ile Leu Val Thr Val Ser Ser Ala Ser Thr Lys 
        115                 120                 125             


Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly 
    130                 135                 140                 


Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro 
145                 150                 155                 160 


Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr 
                165                 170                 175     


Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val 
            180                 185                 190         


Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn 
        195                 200                 205             


Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro 
    210                 215                 220                 


Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
225                 230                 235                 240 


Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
                245                 250                 255     


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
            260                 265                 270         


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
        275                 280                 285             


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
    290                 295                 300                 


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
305                 310                 315                 320 


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
                325                 330                 335     


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
            340                 345                 350         


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
        355                 360                 365             


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
    370                 375                 380                 


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
385                 390                 395                 400 


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
                405                 410                 415     


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
            420                 425                 430         


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
        435                 440                 445             


Leu Ser Pro Gly Lys 
    450             


<210> 266
<211> 215
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(N4D/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM003[ICOS]_VL

<400> 266
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Arg Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Arg Gly Gln Ala Pro Arg Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Asp Gly Ser Gly Thr Asp Phe Thr Leu Ser Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys His Gln Tyr Asp Met Ser Pro 
                85                  90                  95      


Phe Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala 
            100                 105                 110         


Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser 
        115                 120                 125             


Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu 
    130                 135                 140                 


Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser 
145                 150                 155                 160 


Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu 
                165                 170                 175     


Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val 
            180                 185                 190         


Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys 
        195                 200                 205             


Ser Phe Asn Arg Gly Glu Cys 
    210                 215 


<210> 267
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 267
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 268
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - Jmab-136[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 268
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 269
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  Jmab-136[ICOS]_VL

<400> 269
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 270
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 270
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 271
<211> 452
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - ICOS 314.8[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 271
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr Ala Ser Thr Lys Gly 
        115                 120                 125             


Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly 
    130                 135                 140                 


Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val 
145                 150                 155                 160 


Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe 
                165                 170                 175     


Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val 
            180                 185                 190         


Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val 
        195                 200                 205             


Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys 
    210                 215                 220                 


Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val 
225                 230                 235                 240 


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
                245                 250                 255     


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
            260                 265                 270         


His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu 
        275                 280                 285             


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr 
    290                 295                 300                 


Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn 
305                 310                 315                 320 


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro 
                325                 330                 335     


Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln 
            340                 345                 350         


Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val 
        355                 360                 365             


Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
    370                 375                 380                 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
385                 390                 395                 400 


Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
                405                 410                 415     


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
            420                 425                 430         


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
        435                 440                 445             


Ser Pro Gly Lys 
    450         


<210> 272
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  ICOS 314.8[ICOS]_VL

<400> 272
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 273
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 273
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 274
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - H2L5[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 274
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 275
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  H2L5[ICOS]_VL

<400> 275
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 276
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 276
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 277
<211> 446
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - 37A10S713[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 277
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu 
        115                 120                 125             


Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys 
    130                 135                 140                 


Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser 
145                 150                 155                 160 


Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser 
                165                 170                 175     


Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser 
            180                 185                 190         


Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asn 
        195                 200                 205             


Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His 
    210                 215                 220                 


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
225                 230                 235                 240 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
                245                 250                 255     


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
            260                 265                 270         


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
        275                 280                 285             


Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
    290                 295                 300                 


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
305                 310                 315                 320 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
                325                 330                 335     


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
            340                 345                 350         


Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val 
        355                 360                 365             


Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly 
    370                 375                 380                 


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
385                 390                 395                 400 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
                405                 410                 415     


Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His 
            420                 425                 430         


Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
        435                 440                 445     


<210> 278
<211> 218
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- 37A10S713[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  37A10S713[ICOS]_VL

<400> 278
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg 
            100                 105                 110         


Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln 
        115                 120                 125             


Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr 
    130                 135                 140                 


Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser 
145                 150                 155                 160 


Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr 
                165                 170                 175     


Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys 
            180                 185                 190         


His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro 
        195                 200                 205             


Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215             


<210> 279
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 279
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 280
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - C398.4A[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 280
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Ala Gly 
1               5                   10                  15      


Ser Leu Thr Leu Ser Cys Val Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ala Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Val Ser Arg Asp Asp Ser Gln Gly Met 
65                  70                  75                  80  


Val Tyr Leu Gln Met Asn Asn Leu Arg Lys Glu Asp Thr Ala Thr Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 281
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  C398.4A[ICOS]_VL

<400> 281
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Pro Ala Ser Leu Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Asn Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Asp Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Arg Asp Tyr Ser Phe Thr Ile Ser Ser Leu Glu Ser 
65                  70                  75                  80  


Glu Asp Ile Gly Ser Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 282
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 282
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 283
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - ICOS.33[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 283
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr 
65                  70                  75                  80  


Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 284
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  ICOS.33[ICOS]_VL

<400> 284
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Glu Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Phe Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Ile Ala Thr Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 285
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 285
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 286
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM001[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 286
Gln Val Gln Val Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ser Thr Phe 
            20                  25                  30          


Gly Ile Thr Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Ser Ala Tyr Asn Gly Asp Thr Asn Tyr Ala Gln Asn Leu 
    50                  55                  60                  


Gln Gly Arg Val Ile Met Thr Thr Asp Thr Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Arg Ser Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Ser Ser Gly His Tyr Tyr Tyr Tyr Gly Met Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 287
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM001[ICOS]_VL

<400> 287
Asp Ile Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Leu Leu His Ser 
            20                  25                  30          


Asn Glu Tyr Asn Tyr Leu Asp Trp Tyr Leu Gln Lys Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Phe Leu Gly Ser Asn Arg Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Thr Arg Val Glu Ala Glu Asp Val Gly Ile Tyr Tyr Cys Met Gln Ser 
                85                  90                  95      


Leu Gln Thr Pro Leu Thr Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 288
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human_IL15(D30N/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 288
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Glu Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 289
<211> 453
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM003[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 289
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Val Val Arg Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Val Ala Ser Gly Val Thr Phe Asp Asp Tyr 
            20                  25                  30          


Gly Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Gly Ile Asn Trp Asn Gly Gly Asp Thr Asp Tyr Ser Asp Ser Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Leu Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Asp Phe Tyr Gly Ser Gly Ser Tyr Tyr His Val Pro Phe Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Ile Leu Val Thr Val Ser Ser Ala Ser Thr Lys 
        115                 120                 125             


Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly 
    130                 135                 140                 


Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro 
145                 150                 155                 160 


Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr 
                165                 170                 175     


Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val 
            180                 185                 190         


Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn 
        195                 200                 205             


Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro 
    210                 215                 220                 


Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
225                 230                 235                 240 


Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
                245                 250                 255     


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
            260                 265                 270         


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
        275                 280                 285             


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
    290                 295                 300                 


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
305                 310                 315                 320 


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
                325                 330                 335     


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
            340                 345                 350         


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
        355                 360                 365             


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
    370                 375                 380                 


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
385                 390                 395                 400 


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
                405                 410                 415     


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
            420                 425                 430         


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
        435                 440                 445             


Leu Ser Pro Gly Lys 
    450             


<210> 290
<211> 215
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)_IgG1
      _pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM003[ICOS]_VL

<400> 290
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Arg Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Arg Gly Gln Ala Pro Arg Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Asp Gly Ser Gly Thr Asp Phe Thr Leu Ser Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys His Gln Tyr Asp Met Ser Pro 
                85                  90                  95      


Phe Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala 
            100                 105                 110         


Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser 
        115                 120                 125             


Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu 
    130                 135                 140                 


Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser 
145                 150                 155                 160 


Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu 
                165                 170                 175     


Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val 
            180                 185                 190         


Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys 
        195                 200                 205             


Ser Phe Asn Arg Gly Glu Cys 
    210                 215 


<210> 291
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 291
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 292
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - Jmab-136[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 292
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn 
        355                 360                 365             


Gln Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 293
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- Jmab-136[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  Jmab-136[ICOS]_VL

<400> 293
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 294
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q Chain 1 -  human
      _IL15Ra(sushi)_(GGGGS)5-human_IL15(D30N/E64Q/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 294
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 295
<211> 452
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: 
      _/S267K/S364K/E357Q Chain 2 - ICOS 314.8[ICOS]_VH_IgG1_PVA
      _/S267K/S364K/E357Q

<400> 295
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr Ala Ser Thr Lys Gly 
        115                 120                 125             


Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly 
    130                 135                 140                 


Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val 
145                 150                 155                 160 


Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe 
                165                 170                 175     


Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val 
            180                 185                 190         


Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val 
        195                 200                 205             


Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys 
    210                 215                 220                 


Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val 
225                 230                 235                 240 


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
                245                 250                 255     


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
            260                 265                 270         


His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu 
        275                 280                 285             


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr 
    290                 295                 300                 


Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn 
305                 310                 315                 320 


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro 
                325                 330                 335     


Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln 
            340                 345                 350         


Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val 
        355                 360                 365             


Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
    370                 375                 380                 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
385                 390                 395                 400 


Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
                405                 410                 415     


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
            420                 425                 430         


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
        435                 440                 445             


Ser Pro Gly Lys 
    450         


<210> 296
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS 314.8[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: 
      _/S267K/S364K/E357Q Chain 3 -  ICOS 314.8[ICOS]_VL

<400> 296
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 297
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 297
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 298
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - H2L5[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 298
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 299
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- H2L5[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  H2L5[ICOS]_VL

<400> 299
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 300
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- 37A10S713[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q Chain 1 -  human
      _IL15Ra(sushi)_(GGGGS)5-human_IL15(D30N/E64Q/N65D;single-chain)
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S

<400> 300
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 301
<211> 446
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- 37A10S713[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q Chain 2 - 37A10S713[ICOS]
      _VH_IgG1_PVA_/S267K/S364K/E357Q

<400> 301
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu 
        115                 120                 125             


Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys 
    130                 135                 140                 


Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser 
145                 150                 155                 160 


Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser 
                165                 170                 175     


Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser 
            180                 185                 190         


Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asn 
        195                 200                 205             


Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His 
    210                 215                 220                 


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
225                 230                 235                 240 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
                245                 250                 255     


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
            260                 265                 270         


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
        275                 280                 285             


Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
    290                 295                 300                 


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
305                 310                 315                 320 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
                325                 330                 335     


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
            340                 345                 350         


Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu Thr Cys Leu Val 
        355                 360                 365             


Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly 
    370                 375                 380                 


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
385                 390                 395                 400 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
                405                 410                 415     


Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His 
            420                 425                 430         


Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
        435                 440                 445     


<210> 302
<211> 218
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- 37A10S713[ICOS]_IgG1
      _Fc(216)_IgG1_pI(-)_Isosteric_A_C220S/PVA
      _/S267K/L368D/K370S-IgG1_PVA

<220>
<223> CONT. FROM ABOVE: 
      _/S267K/S364K/E357Q Chain 3 -  37A10S713[ICOS]_VL

<400> 302
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg 
            100                 105                 110         


Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln 
        115                 120                 125             


Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr 
    130                 135                 140                 


Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser 
145                 150                 155                 160 


Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr 
                165                 170                 175     


Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys 
            180                 185                 190         


His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro 
        195                 200                 205             


Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215             


<210> 303
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 303
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 304
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - C398.4A[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 304
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Ala Gly 
1               5                   10                  15      


Ser Leu Thr Leu Ser Cys Val Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ala Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Val Ser Arg Asp Asp Ser Gln Gly Met 
65                  70                  75                  80  


Val Tyr Leu Gln Met Asn Asn Leu Arg Lys Glu Asp Thr Ala Thr Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 305
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- C398.4A[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  C398.4A[ICOS]_VL

<400> 305
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Pro Ala Ser Leu Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Asn Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Asp Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Arg Asp Tyr Ser Phe Thr Ile Ser Ser Leu Glu Ser 
65                  70                  75                  80  


Glu Asp Ile Gly Ser Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 306
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 306
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 307
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - ICOS.33[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 307
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Phe Met His Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Val Ile Asp Thr Lys Ser Phe Asn Tyr Ala Thr Tyr Tyr Ser Asp 
    50                  55                  60                  


Leu Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Asn Thr 
65                  70                  75                  80  


Leu Tyr Leu Gln Met Asn Ser Leu Lys Thr Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Thr Ala Thr Ile Ala Val Pro Tyr Tyr Phe Asp Tyr Trp Gly 
            100                 105                 110         


Gln Gly Thr Leu Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 308
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- ICOS.33[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  ICOS.33[ICOS]_VL

<400> 308
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Asn Tyr 
            20                  25                  30          


Leu Ser Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Tyr Thr Asn Leu Leu Ala Glu Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Phe Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Ile Ala Thr Tyr Tyr Cys Gln Gln Tyr Tyr Asn Tyr Arg Thr 
                85                  90                  95      


Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 309
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 309
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 310
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM001[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 310
Gln Val Gln Val Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Ser Thr Phe 
            20                  25                  30          


Gly Ile Thr Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Ser Ala Tyr Asn Gly Asp Thr Asn Tyr Ala Gln Asn Leu 
    50                  55                  60                  


Gln Gly Arg Val Ile Met Thr Thr Asp Thr Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Arg Ser Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Ser Ser Gly His Tyr Tyr Tyr Tyr Gly Met Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln Val Lys Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 311
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM001[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM001[ICOS]_VL

<400> 311
Asp Ile Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Pro Ala Ser Ile Ser Cys Arg Ser Ser Gln Ser Leu Leu His Ser 
            20                  25                  30          


Asn Glu Tyr Asn Tyr Leu Asp Trp Tyr Leu Gln Lys Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Phe Leu Gly Ser Asn Arg Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Thr Arg Val Glu Ala Glu Asp Val Gly Ile Tyr Tyr Cys Met Gln Ser 
                85                  90                  95      


Leu Gln Thr Pro Leu Thr Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 312
<211> 435
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 1 -  human_IL15Ra(sushi)

<220>
<223> CONT. FROM ABOVE: _(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)_Fc(216)_IgG1_pI(-)_Isosteric
      _A_C220S/PVA_/S267K/L368D/K370S

<400> 312
Ile Thr Cys Pro Pro Pro Met Ser Val Glu His Ala Asp Ile Trp Val 
1               5                   10                  15      


Lys Ser Tyr Ser Leu Tyr Ser Arg Glu Arg Tyr Ile Cys Asn Ser Gly 
            20                  25                  30          


Phe Lys Arg Lys Ala Gly Thr Ser Ser Leu Thr Glu Cys Val Leu Asn 
        35                  40                  45              


Lys Ala Thr Asn Val Ala His Trp Thr Thr Pro Ser Leu Lys Cys Ile 
    50                  55                  60                  


Arg Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser 
65                  70                  75                  80  


Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Asn Trp Val Asn Val Ile 
                85                  90                  95      


Ser Asp Leu Lys Lys Ile Glu Asp Leu Ile Gln Ser Met His Ile Asp 
            100                 105                 110         


Ala Thr Leu Tyr Thr Glu Ser Asn Val His Pro Ser Cys Lys Val Thr 
        115                 120                 125             


Ala Met Lys Cys Phe Leu Leu Glu Leu Gln Val Ile Ser Leu Glu Ser 
    130                 135                 140                 


Gly Asp Ala Ser Ile His Asp Thr Val Gln Asp Leu Ile Ile Leu Ala 
145                 150                 155                 160 


Asn Asn Ser Leu Ser Ser Asn Gly Asn Val Thr Glu Ser Gly Cys Lys 
                165                 170                 175     


Glu Cys Glu Glu Leu Glu Glu Lys Asn Ile Lys Glu Phe Leu Gln Ser 
            180                 185                 190         


Phe Val His Ile Val Gln Met Phe Ile Asn Thr Ser Glu Pro Lys Ser 
        195                 200                 205             


Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala 
    210                 215                 220                 


Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met 
225                 230                 235                 240 


Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His 
                245                 250                 255     


Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val 
            260                 265                 270         


His Asn Ala Lys Thr Lys Pro Arg Glu Glu Glu Tyr Asn Ser Thr Tyr 
        275                 280                 285             


Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly 
    290                 295                 300                 


Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile 
305                 310                 315                 320 


Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val 
                325                 330                 335     


Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser 
            340                 345                 350         


Leu Thr Cys Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu 
        355                 360                 365             


Trp Glu Ser Asp Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro 
    370                 375                 380                 


Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val 
385                 390                 395                 400 


Asp Lys Ser Arg Trp Glu Gln Gly Asp Val Phe Ser Cys Ser Val Met 
                405                 410                 415     


His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser 
            420                 425                 430         


Pro Gly Lys 
        435 


<210> 313
<211> 453
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 2 - STIM003[ICOS]_VH_IgG1_PVA

<220>
<223> CONT. FROM ABOVE: _/S267K/S364K/E357Q

<400> 313
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Val Val Arg Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Val Ala Ser Gly Val Thr Phe Asp Asp Tyr 
            20                  25                  30          


Gly Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Gly Ile Asn Trp Asn Gly Gly Asp Thr Asp Tyr Ser Asp Ser Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Leu Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Asp Phe Tyr Gly Ser Gly Ser Tyr Tyr His Val Pro Phe Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Ile Leu Val Thr Val Ser Ser Ala Ser Thr Lys 
        115                 120                 125             


Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly 
    130                 135                 140                 


Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro 
145                 150                 155                 160 


Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr 
                165                 170                 175     


Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val 
            180                 185                 190         


Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn 
        195                 200                 205             


Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro 
    210                 215                 220                 


Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
225                 230                 235                 240 


Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
                245                 250                 255     


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
            260                 265                 270         


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
        275                 280                 285             


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
    290                 295                 300                 


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
305                 310                 315                 320 


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
                325                 330                 335     


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
            340                 345                 350         


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
        355                 360                 365             


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
    370                 375                 380                 


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
385                 390                 395                 400 


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
                405                 410                 415     


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
            420                 425                 430         


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
        435                 440                 445             


Leu Ser Pro Gly Lys 
    450             


<210> 314
<211> 215
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> human_IL15Ra(sushi)_(GGGGS)5-human
      _IL15(D30N/E64Q/N65D;single-chain)- STIM003[ICOS]_IgG1_Fc(216)
      _IgG1_pI(-)_Isosteric_A_C220S/PVA_/S267K/L368D/K370S-IgG1_PVA
      _/S267K/S364K/E357Q Chain 3 -  STIM003[ICOS]_VL

<400> 314
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Val Ser Arg Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Arg Gly Gln Ala Pro Arg Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Asp Gly Ser Gly Thr Asp Phe Thr Leu Ser Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys His Gln Tyr Asp Met Ser Pro 
                85                  90                  95      


Phe Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg Thr Val Ala 
            100                 105                 110         


Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser 
        115                 120                 125             


Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu 
    130                 135                 140                 


Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser 
145                 150                 155                 160 


Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu 
                165                 170                 175     


Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val 
            180                 185                 190         


Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys 
        195                 200                 205             


Ser Phe Asn Arg Gly Glu Cys 
    210                 215 


<210> 315
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 315
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 316
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 316
Gly Tyr Tyr Met His 
1               5   


<210> 317
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 317
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 318
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 318
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 319
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K Full length HC

<400> 319
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn 
        355                 360                 365             


Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 320
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 320
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 321
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 321
Arg Ala Ser Gln Gly Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 322
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 322
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 323
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 323
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 324
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP016435 [anti-ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 324
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 325
<211> 123
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 325
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr 
        115                 120             


<210> 326
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 326
Thr Tyr Trp Met His 
1               5   


<210> 327
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 327
Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe Lys 
1               5                   10                  15      


Gly 
    


<210> 328
<211> 14
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 328
Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
1               5                   10                  


<210> 329
<211> 452
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K Full length HC

<400> 329
Gln Val Gln Leu Gln Gln Pro Gly Thr Glu Leu Met Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 
            20                  25                  30          


Trp Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Glu Ile Asp Pro Ser Asp Ser Tyr Val Asn Tyr Asn Gln Asn Phe 
    50                  55                  60                  


Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 
65                  70                  75                  80  


Ile Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Phe Cys 
                85                  90                  95      


Ala Arg Ser Pro Asp Tyr Tyr Gly Thr Ser Leu Ala Trp Phe Asp Tyr 
            100                 105                 110         


Trp Gly Gln Gly Thr Leu Val Thr Val Ser Thr Ala Ser Thr Lys Gly 
        115                 120                 125             


Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly 
    130                 135                 140                 


Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val 
145                 150                 155                 160 


Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe 
                165                 170                 175     


Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val 
            180                 185                 190         


Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val 
        195                 200                 205             


Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys 
    210                 215                 220                 


Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val 
225                 230                 235                 240 


Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu 
                245                 250                 255     


Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys 
            260                 265                 270         


His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu 
        275                 280                 285             


Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr 
    290                 295                 300                 


Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn 
305                 310                 315                 320 


Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro 
                325                 330                 335     


Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln 
            340                 345                 350         


Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val 
        355                 360                 365             


Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val 
    370                 375                 380                 


Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro 
385                 390                 395                 400 


Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr 
                405                 410                 415     


Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val 
            420                 425                 430         


Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu 
        435                 440                 445             


Ser Pro Gly Lys 
    450         


<210> 330
<211> 112
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 330
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


<210> 331
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 331
Arg Ser Ser Lys Ser Pro Leu His Ser Asn Gly Asn Ile Tyr Leu Tyr 
1               5                   10                  15      


<210> 332
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 332
Arg Met Ser Asn Leu Ala Ser 
1               5           


<210> 333
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 333
Met Gln His Leu Glu Tyr Pro Tyr Thr 
1               5                   


<210> 334
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021820 GSK_314.8[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 334
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Pro Leu His Ser 
            20                  25                  30          


Asn Gly Asn Ile Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Thr Phe Thr Leu Lys Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Tyr Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 335
<211> 124
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 335
Gln Val Gln Leu Gln Gln Pro Gly Ala Glu Leu Val Arg Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Ser Tyr 
            20                  25                  30          


Trp Ile Asn Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Asn Ile Tyr Pro Ser Asp Ser Tyr Thr Asn Tyr Asn Gln Met Phe 
    50                  55                  60                  


Lys Asp Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Asn Thr Ala Tyr 
65                  70                  75                  80  


Met Gln Leu Thr Ser Pro Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Asn Leu Ser Tyr Tyr Phe Asp Asn Asn Tyr Tyr Leu Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Thr Thr Leu Thr Val Ser Ser 
        115                 120                 


<210> 336
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 336
Ser Tyr Trp Ile Asn 
1               5   


<210> 337
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 337
Asn Ile Tyr Pro Ser Asp Ser Tyr Thr Asn Tyr Asn Gln Met Phe Lys 
1               5                   10                  15      


Asp 
    


<210> 338
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 338
Trp Asn Leu Ser Tyr Tyr Phe Asp Asn Asn Tyr Tyr Leu Asp Tyr 
1               5                   10                  15  


<210> 339
<211> 453
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K Full length HC

<400> 339
Gln Val Gln Leu Gln Gln Pro Gly Ala Glu Leu Val Arg Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Leu Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Ser Tyr 
            20                  25                  30          


Trp Ile Asn Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 
        35                  40                  45              


Gly Asn Ile Tyr Pro Ser Asp Ser Tyr Thr Asn Tyr Asn Gln Met Phe 
    50                  55                  60                  


Lys Asp Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Asn Thr Ala Tyr 
65                  70                  75                  80  


Met Gln Leu Thr Ser Pro Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Asn Leu Ser Tyr Tyr Phe Asp Asn Asn Tyr Tyr Leu Asp 
            100                 105                 110         


Tyr Trp Gly Gln Gly Thr Thr Leu Thr Val Ser Ser Ala Ser Thr Lys 
        115                 120                 125             


Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly 
    130                 135                 140                 


Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro 
145                 150                 155                 160 


Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr 
                165                 170                 175     


Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val 
            180                 185                 190         


Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn 
        195                 200                 205             


Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro 
    210                 215                 220                 


Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
225                 230                 235                 240 


Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr 
                245                 250                 255     


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
            260                 265                 270         


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
        275                 280                 285             


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
    290                 295                 300                 


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
305                 310                 315                 320 


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
                325                 330                 335     


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
            340                 345                 350         


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln 
        355                 360                 365             


Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
    370                 375                 380                 


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
385                 390                 395                 400 


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
                405                 410                 415     


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
            420                 425                 430         


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
        435                 440                 445             


Leu Ser Pro Gly Lys 
    450             


<210> 340
<211> 112
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 340
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Leu Leu His Ser 
            20                  25                  30          


Asn Gly Asn Thr Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Ala Phe Thr Leu Arg Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Trp Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


<210> 341
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 341
Arg Ser Ser Lys Ser Leu Leu His Ser Asn Gly Asn Thr Tyr Leu Tyr 
1               5                   10                  15      


<210> 342
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 342
Arg Met Ser Asn Leu Ala Ser 
1               5           


<210> 343
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 343
Met Gln His Leu Glu Tyr Pro Trp Thr 
1               5                   


<210> 344
<211> 219
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021821 GSK_88.2[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 344
Asp Ile Val Met Thr Gln Ala Ala Pro Ser Val Pro Val Thr Pro Gly 
1               5                   10                  15      


Glu Ser Val Ser Ile Ser Cys Arg Ser Ser Lys Ser Leu Leu His Ser 
            20                  25                  30          


Asn Gly Asn Thr Tyr Leu Tyr Trp Phe Leu Gln Arg Pro Gly Gln Ser 
        35                  40                  45              


Pro Gln Leu Leu Ile Tyr Arg Met Ser Asn Leu Ala Ser Gly Val Pro 
    50                  55                  60                  


Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Ala Phe Thr Leu Arg Ile 
65                  70                  75                  80  


Ser Arg Val Glu Ala Glu Asp Val Gly Val Tyr Tyr Cys Met Gln His 
                85                  90                  95      


Leu Glu Tyr Pro Trp Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 110         


Arg Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu 
        115                 120                 125             


Gln Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe 
    130                 135                 140                 


Tyr Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln 
145                 150                 155                 160 


Ser Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser 
                165                 170                 175     


Thr Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu 
            180                 185                 190         


Lys His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser 
        195                 200                 205             


Pro Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215                 


<210> 345
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 345
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 
            20                  25                  30          


Asp Met His Trp Val Arg Gln Ala Thr Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys 
    50                  55                  60                  


Gly Arg Phe Thr Ile Ser Arg Glu Asn Ala Lys Asn Ser Leu Tyr Leu 
65                  70                  75                  80  


Gln Met Asn Ser Leu Arg Ala Gly Asp Thr Ala Val Tyr Tyr Cys Val 
                85                  90                  95      


Arg Asp Asn Arg Lys Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Thr Val Thr Val Ser Ser 
        115                 120                 125 


<210> 346
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 346
Ser Tyr Asp Met His 
1               5   


<210> 347
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 347
Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys Gly 
1               5                   10                  15      


<210> 348
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 348
Asp Asn Arg Lys Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met Asp 
1               5                   10                  15      


Val 
    


<210> 349
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K Full length HC

<400> 349
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 
            20                  25                  30          


Asp Met His Trp Val Arg Gln Ala Thr Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys 
    50                  55                  60                  


Gly Arg Phe Thr Ile Ser Arg Glu Asn Ala Lys Asn Ser Leu Tyr Leu 
65                  70                  75                  80  


Gln Met Asn Ser Leu Arg Ala Gly Asp Thr Ala Val Tyr Tyr Cys Val 
                85                  90                  95      


Arg Asp Asn Arg Lys Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn 
        355                 360                 365             


Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 350
<211> 109
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 350
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Asn Ile Arg Ser Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Gly Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Phe Gly Ser Ser Pro 
                85                  90                  95      


Met Cys Ser Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 


<210> 351
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 351
Arg Ala Ser Gln Asn Ile Arg Ser Ser Tyr Leu Ala 
1               5                   10          


<210> 352
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 352
Gly Ala Ser Ser Arg Ala Thr 
1               5           


<210> 353
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 353
Gln Gln Phe Gly Ser Ser Pro Met Cys Ser 
1               5                   10  


<210> 354
<211> 216
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021822 jMab-138[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 354
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Asn Ile Arg Ser Ser 
            20                  25                  30          


Tyr Leu Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Gly Leu Leu 
        35                  40                  45              


Ile Tyr Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Phe Gly Ser Ser Pro 
                85                  90                  95      


Met Cys Ser Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val 
            100                 105                 110         


Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys 
        115                 120                 125             


Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg 
    130                 135                 140                 


Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn 
145                 150                 155                 160 


Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser 
                165                 170                 175     


Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys 
            180                 185                 190         


Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr 
        195                 200                 205             


Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215     


<210> 355
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 355
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 
            20                  25                  30          


Asp Met His Trp Val Arg Gln Ala Thr Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys 
    50                  55                  60                  


Gly Arg Phe Thr Ile Ser Arg Glu Asn Ala Lys Asn Ser Leu Tyr Leu 
65                  70                  75                  80  


Gln Met Asn Ser Leu Arg Ala Gly Asp Thr Ala Val Tyr Tyr Cys Val 
                85                  90                  95      


Arg Asp Lys Arg Thr Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Thr Val Thr Val Ser Ser 
        115                 120                 125 


<210> 356
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 356
Ser Tyr Asp Met His 
1               5   


<210> 357
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 357
Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys Gly 
1               5                   10                  15      


<210> 358
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 358
Asp Lys Arg Thr Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met Asp 
1               5                   10                  15      


Val 
    


<210> 359
<211> 454
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K Full length HC

<400> 359
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 
            20                  25                  30          


Asp Met His Trp Val Arg Gln Ala Thr Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Ser Ala Ile Gly Thr Ala Gly Asp Thr Tyr Tyr Pro Gly Ser Val Lys 
    50                  55                  60                  


Gly Arg Phe Thr Ile Ser Arg Glu Asn Ala Lys Asn Ser Leu Tyr Leu 
65                  70                  75                  80  


Gln Met Asn Ser Leu Arg Ala Gly Asp Thr Ala Val Tyr Tyr Cys Val 
                85                  90                  95      


Arg Asp Lys Arg Thr Val Thr His Glu His Tyr Tyr Tyr Tyr Gly Met 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro 
225                 230                 235                 240 


Pro Val Ala Gly Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp 
                245                 250                 255     


Thr Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp 
            260                 265                 270         


Val Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly 
        275                 280                 285             


Val Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn 
    290                 295                 300                 


Ser Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp 
305                 310                 315                 320 


Leu Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro 
                325                 330                 335     


Ala Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu 
            340                 345                 350         


Pro Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn 
        355                 360                 365             


Gln Val Ser Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile 
    370                 375                 380                 


Ala Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr 
385                 390                 395                 400 


Thr Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys 
                405                 410                 415     


Leu Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys 
            420                 425                 430         


Ser Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu 
        435                 440                 445             


Ser Leu Ser Pro Gly Lys 
    450                 


<210> 360
<211> 109
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 360
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Ile Ser Ser Ser 
            20                  25                  30          


Ser Leu Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Gly Leu Leu 
        35                  40                  45              


Ile Phe Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Phe Gly Ser Ser Pro 
                85                  90                  95      


Met Cys Ser Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 
            100                 105                 


<210> 361
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 361
Arg Ala Ser Gln Ser Ile Ser Ser Ser Ser Leu Ala 
1               5                   10          


<210> 362
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 362
Gly Ala Ser Ser Arg Ala Thr 
1               5           


<210> 363
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 363
Gln Gln Phe Gly Ser Ser Pro Met Cys Ser 
1               5                   10  


<210> 364
<211> 216
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP021823 jMab-139[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 364
Glu Ile Val Leu Thr Gln Ser Pro Gly Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Arg Ala Ser Gln Ser Ile Ser Ser Ser 
            20                  25                  30          


Ser Leu Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Gly Leu Leu 
        35                  40                  45              


Ile Phe Gly Ala Ser Ser Arg Ala Thr Gly Ile Pro Asp Arg Phe Ser 
    50                  55                  60                  


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Arg Leu Glu 
65                  70                  75                  80  


Pro Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Phe Gly Ser Ser Pro 
                85                  90                  95      


Met Cys Ser Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val 
            100                 105                 110         


Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys 
        115                 120                 125             


Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg 
    130                 135                 140                 


Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn 
145                 150                 155                 160 


Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser 
                165                 170                 175     


Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys 
            180                 185                 190         


Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr 
        195                 200                 205             


Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215     


<210> 365
<211> 121
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 365
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser 
        115                 120     


<210> 366
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 366
Asp Tyr Ala Met His 
1               5   


<210> 367
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 367
Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 368
<211> 12
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 368
Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val 
1               5                   10          


<210> 369
<211> 450
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length HC

<400> 369
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ser 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Asp Tyr 
            20                  25                  30          


Ala Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Leu Ile Ser Ile Tyr Ser Asp His Thr Asn Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Gly Arg Asn Asn Tyr Gly Asn Tyr Gly Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Gln Gly Thr Thr Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser 
        115                 120                 125             


Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala 
    130                 135                 140                 


Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val 
145                 150                 155                 160 


Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala 
                165                 170                 175     


Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val 
            180                 185                 190         


Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His 
        195                 200                 205             


Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys 
    210                 215                 220                 


Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly 
225                 230                 235                 240 


Pro Ser Val Phe Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile 
                245                 250                 255     


Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val Lys His Glu 
            260                 265                 270         


Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His 
        275                 280                 285             


Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg 
    290                 295                 300                 


Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys 
305                 310                 315                 320 


Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu 
                325                 330                 335     


Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr 
            340                 345                 350         


Thr Leu Pro Pro Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu 
        355                 360                 365             


Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val 
385                 390                 395                 400 


Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp 
                405                 410                 415     


Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His 
            420                 425                 430         


Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro 
        435                 440                 445             


Gly Lys 
    450 


<210> 370
<211> 106
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 370
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 
            100                 105     


<210> 371
<211> 10
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 371
Ser Ala Ser Ser Ser Val Ser Tyr Met His 
1               5                   10  


<210> 372
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 372
Asp Thr Ser Lys Leu Ala Ser 
1               5           


<210> 373
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 373
Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
1               5                   


<210> 374
<211> 213
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022346 WO2016059602_GSK[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 374
Glu Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Leu Ser Pro Gly 
1               5                   10                  15      


Glu Arg Ala Thr Leu Ser Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 
            20                  25                  30          


His Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile Tyr 
        35                  40                  45              


Asp Thr Ser Lys Leu Ala Ser Gly Ile Pro Ala Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Glu Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Val Tyr Tyr Cys Phe Gln Gly Ser Gly Tyr Pro Tyr Thr 
                85                  90                  95      


Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys Arg Thr Val Ala Ala Pro 
            100                 105                 110         


Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly Thr 
        115                 120                 125             


Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala Lys 
    130                 135                 140                 


Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln Glu 
145                 150                 155                 160 


Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser Ser 
                165                 170                 175     


Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr Ala 
            180                 185                 190         


Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser Phe 
        195                 200                 205             


Asn Arg Gly Glu Cys 
    210             


<210> 375
<211> 117
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable heavy (vh) domain

<400> 375
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser 
        115         


<210> 376
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR1

<400> 376
Asp Tyr Trp Met Asp 
1               5   


<210> 377
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR2

<400> 377
Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val Lys 
1               5                   10                  15      


Gly 
    


<210> 378
<211> 8
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vhCDR3

<400> 378
Trp Gly Arg Phe Gly Phe Asp Ser 
1               5               


<210> 379
<211> 446
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length HC

<400> 379
Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 
1               5                   10                  15      


Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 
            20                  25                  30          


Trp Met Asp Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Val Trp Val 
        35                  40                  45              


Ser Asn Ile Asp Glu Asp Gly Ser Ile Thr Glu Tyr Ser Pro Phe Val 
    50                  55                  60                  


Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Tyr 
65                  70                  75                  80  


Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Thr Arg Trp Gly Arg Phe Gly Phe Asp Ser Trp Gly Gln Gly Thr Leu 
            100                 105                 110         


Val Thr Val Ser Ser Ala Ser Thr Lys Gly Pro Ser Val Phe Pro Leu 
        115                 120                 125             


Ala Pro Ser Ser Lys Ser Thr Ser Gly Gly Thr Ala Ala Leu Gly Cys 
    130                 135                 140                 


Leu Val Lys Asp Tyr Phe Pro Glu Pro Val Thr Val Ser Trp Asn Ser 
145                 150                 155                 160 


Gly Ala Leu Thr Ser Gly Val His Thr Phe Pro Ala Val Leu Gln Ser 
                165                 170                 175     


Ser Gly Leu Tyr Ser Leu Ser Ser Val Val Thr Val Pro Ser Ser Ser 
            180                 185                 190         


Leu Gly Thr Gln Thr Tyr Ile Cys Asn Val Asn His Lys Pro Ser Asn 
        195                 200                 205             


Thr Lys Val Asp Lys Lys Val Glu Pro Lys Ser Cys Asp Lys Thr His 
    210                 215                 220                 


Thr Cys Pro Pro Cys Pro Ala Pro Pro Val Ala Gly Pro Ser Val Phe 
225                 230                 235                 240 


Leu Phe Pro Pro Lys Pro Lys Asp Thr Leu Met Ile Ser Arg Thr Pro 
                245                 250                 255     


Glu Val Thr Cys Val Val Val Asp Val Lys His Glu Asp Pro Glu Val 
            260                 265                 270         


Lys Phe Asn Trp Tyr Val Asp Gly Val Glu Val His Asn Ala Lys Thr 
        275                 280                 285             


Lys Pro Arg Glu Glu Gln Tyr Asn Ser Thr Tyr Arg Val Val Ser Val 
    290                 295                 300                 


Leu Thr Val Leu His Gln Asp Trp Leu Asn Gly Lys Glu Tyr Lys Cys 
305                 310                 315                 320 


Lys Val Ser Asn Lys Ala Leu Pro Ala Pro Ile Glu Lys Thr Ile Ser 
                325                 330                 335     


Lys Ala Lys Gly Gln Pro Arg Glu Pro Gln Val Tyr Thr Leu Pro Pro 
            340                 345                 350         


Ser Arg Glu Glu Met Thr Lys Asn Gln Val Ser Leu Thr Cys Leu Val 
        355                 360                 365             


Lys Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp Glu Ser Asn Gly 
    370                 375                 380                 


Gln Pro Glu Asn Asn Tyr Lys Thr Thr Pro Pro Val Leu Asp Ser Asp 
385                 390                 395                 400 


Gly Ser Phe Phe Leu Tyr Ser Lys Leu Thr Val Asp Lys Ser Arg Trp 
                405                 410                 415     


Gln Gln Gly Asn Val Phe Ser Cys Ser Val Met His Glu Ala Leu His 
            420                 425                 430         


Asn His Tyr Thr Gln Lys Ser Leu Ser Leu Ser Pro Gly Lys 
        435                 440                 445     


<210> 380
<211> 111
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA
      _/S267K Variable light (vl) domain

<400> 380
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys 
            100                 105                 110     


<210> 381
<211> 15
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR1

<400> 381
Lys Ser Ser Gln Ser Leu Leu Ser Gly Ser Phe Asn Tyr Leu Thr 
1               5                   10                  15  


<210> 382
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR2

<400> 382
Tyr Ala Ser Thr Arg His Thr 
1               5           


<210> 383
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA_/S267K vlCDR3

<400> 383
His His His Tyr Asn Ala Pro Pro Thr 
1               5                   


<210> 384
<211> 218
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023057 Jounce_37A10S713[ICOS]_H0L0_IgG1_PVA
      _/S267K Full length light chain

<400> 384
Asp Ile Val Met Thr Gln Ser Pro Asp Ser Leu Ala Val Ser Leu Gly 
1               5                   10                  15      


Glu Arg Ala Thr Ile Asn Cys Lys Ser Ser Gln Ser Leu Leu Ser Gly 
            20                  25                  30          


Ser Phe Asn Tyr Leu Thr Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 
        35                  40                  45              


Lys Leu Leu Ile Phe Tyr Ala Ser Thr Arg His Thr Gly Val Pro Asp 
    50                  55                  60                  


Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser 
65                  70                  75                  80  


Ser Leu Gln Ala Glu Asp Val Ala Val Tyr Tyr Cys His His His Tyr 
                85                  90                  95      


Asn Ala Pro Pro Thr Phe Gly Pro Gly Thr Lys Val Asp Ile Lys Arg 
            100                 105                 110         


Thr Val Ala Ala Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln 
        115                 120                 125             


Leu Lys Ser Gly Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr 
    130                 135                 140                 


Pro Arg Glu Ala Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser 
145                 150                 155                 160 


Gly Asn Ser Gln Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr 
                165                 170                 175     


Tyr Ser Leu Ser Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys 
            180                 185                 190         


His Lys Val Tyr Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro 
        195                 200                 205             


Val Thr Lys Ser Phe Asn Arg Gly Glu Cys 
    210                 215             


<210> 385
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab Variable heavy (vh) domain

<400> 385
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 386
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vhCDR1

<400> 386
Gly Tyr Tyr Met His 
1               5   


<210> 387
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vhCDR2

<400> 387
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 388
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vhCDR3

<400> 388
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 389
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab Full length HC

<400> 389
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 390
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab Variable light (vl) domain

<400> 390
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 391
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vlCDR1

<400> 391
Arg Ala Ser Gln Gly Ile Ser Ser Tyr Leu Ala 
1               5                   10      


<210> 392
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vlCDR2

<400> 392
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 393
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab vlCDR3

<400> 393
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 394
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab Full length light chain

<400> 394
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 395
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab Variable heavy (vh) domain

<400> 395
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 396
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vhCDR1

<400> 396
Gly Tyr Tyr Met His 
1               5   


<210> 397
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vhCDR2

<400> 397
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 398
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vhCDR3

<400> 398
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 399
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab Full length HC

<400> 399
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 400
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab Variable light (vl) domain

<400> 400
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 401
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vlCDR1

<400> 401
Gln Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 402
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vlCDR2

<400> 402
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 403
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab vlCDR3

<400> 403
Gln Gln Ala Glu Ser Phe Pro Trp Thr 
1               5                   


<210> 404
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab Full length light chain

<400> 404
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 405
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab Variable heavy (vh) domain

<400> 405
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 406
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vhCDR1

<400> 406
Gly Tyr Tyr Met His 
1               5   


<210> 407
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vhCDR2

<400> 407
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 408
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vhCDR3

<400> 408
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 409
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab Full length HC

<400> 409
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 410
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab Variable light (vl) domain

<400> 410
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 411
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vlCDR1

<400> 411
Gln Ala Ser Gln Asp Ile Ser Ser Leu Leu Ala 
1               5                   10      


<210> 412
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vlCDR2

<400> 412
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 413
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab vlCDR3

<400> 413
Gln Gln Ala Glu Ser Phe Pro Trp Thr 
1               5                   


<210> 414
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab Full length light chain

<400> 414
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 415
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab Variable heavy (vh) domain

<400> 415
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 416
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vhCDR1

<400> 416
Gly Tyr Tyr Met His 
1               5   


<210> 417
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vhCDR2

<400> 417
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 418
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vhCDR3

<400> 418
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 419
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab Full length HC

<400> 419
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 420
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab Variable light (vl) domain

<400> 420
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 421
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vlCDR1

<400> 421
Gln Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 422
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vlCDR2

<400> 422
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 423
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab vlCDR3

<400> 423
Gln Gln Ala Glu Ser Phe Pro Trp Thr 
1               5                   


<210> 424
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab Full length light chain

<400> 424
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 425
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab Variable heavy (vh) domain

<400> 425
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 426
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vhCDR1

<400> 426
Gly Tyr Tyr Met His 
1               5   


<210> 427
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vhCDR2

<400> 427
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 428
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vhCDR3

<400> 428
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 429
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab Full length HC

<400> 429
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 430
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab Variable light (vl) domain

<400> 430
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 431
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vlCDR1

<400> 431
Gln Ala Ser Gln Asp Ile Ser Ser Leu Leu Ala 
1               5                   10      


<210> 432
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vlCDR2

<400> 432
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 433
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab vlCDR3

<400> 433
Gln Gln Ala Glu Ser Phe Pro Trp Thr 
1               5                   


<210> 434
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab Full length light chain

<400> 434
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 435
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab Variable heavy (vh) domain

<400> 435
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 436
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vhCDR1

<400> 436
Gly Tyr Tyr Met His 
1               5   


<210> 437
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vhCDR2

<400> 437
Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 438
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vhCDR3

<400> 438
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 439
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab Full length HC

<400> 439
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 440
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab Variable light (vl) domain

<400> 440
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 441
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vlCDR1

<400> 441
Arg Ala Ser Gln Gly Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 442
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vlCDR2

<400> 442
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 443
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab vlCDR3

<400> 443
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 444
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab Full length light chain

<400> 444
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 445
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab Variable heavy (vh) domain

<400> 445
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 446
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vhCDR1

<400> 446
Gly Tyr Tyr Met His 
1               5   


<210> 447
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vhCDR2

<400> 447
Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 448
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vhCDR3

<400> 448
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 449
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab Full length HC

<400> 449
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 450
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab Variable light (vl) domain

<400> 450
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 451
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vlCDR1

<400> 451
Gln Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 452
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vlCDR2

<400> 452
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 453
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab vlCDR3

<400> 453
Gln Gln Ala Glu Ser Phe Pro Trp Thr 
1               5                   


<210> 454
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab Full length light chain

<400> 454
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 455
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv Variable heavy (vh) domain

<400> 455
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 456
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vhCDR1

<400> 456
Gly Tyr Tyr Met His 
1               5   


<210> 457
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vhCDR2

<400> 457
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 458
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vhCDR3

<400> 458
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 459
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv scFv linker

<400> 459
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 460
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv Variable light (vl) domain

<400> 460
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 461
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vlCDR1

<400> 461
Arg Ala Ser Gln Gly Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 462
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vlCDR2

<400> 462
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 463
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv vlCDR3

<400> 463
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 464
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024352 [anti-ICOS]_H0L0_scFv scFv

<400> 464
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Lys Pro 
        115                 120                 125             


Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly 
    130                 135                 140                 


Ser Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val 
145                 150                 155                 160 


Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg 
                165                 170                 175     


Leu Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu 
            180                 185                 190         


Ile Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser 
        195                 200                 205             


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln 
    210                 215                 220                 


Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro 
225                 230                 235                 240 


Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Ser 
                245                 250                 


<210> 465
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv Variable heavy (vh) domain

<400> 465
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 466
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vhCDR1

<400> 466
Gly Tyr Tyr Met His 
1               5   


<210> 467
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vhCDR2

<400> 467
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 468
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vhCDR3

<400> 468
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Ile 
1               5                   10                  15      


<210> 469
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv scFv linker

<400> 469
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 470
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv Variable light (vl) domain

<400> 470
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 471
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vlCDR1

<400> 471
Arg Ala Ser Gln Gly Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 472
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vlCDR2

<400> 472
Val Ala Ser Ser Leu Gln Ser 
1               5           


<210> 473
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv vlCDR3

<400> 473
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 474
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024353 [anti-ICOS]_L0H0_scFv scFv

<400> 474
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 475
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22
      _scFv Variable heavy (vh) domain

<400> 475
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 476
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vhCDR1

<400> 476
Gly Tyr Tyr Met His 
1               5   


<210> 477
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vhCDR2

<400> 477
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 478
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vhCDR3

<400> 478
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 479
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv scFv linker

<400> 479
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 480
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22
      _scFv Variable light (vl) domain

<400> 480
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 481
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vlCDR1

<400> 481
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 482
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vlCDR2

<400> 482
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 483
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv vlCDR3

<400> 483
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 484
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024354 [anti-ICOS]_H0.40_L0.22_scFv scFv

<400> 484
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Lys Pro 
        115                 120                 125             


Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly 
    130                 135                 140                 


Ser Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val 
145                 150                 155                 160 


Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg 
                165                 170                 175     


Leu Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu 
            180                 185                 190         


Ile Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser 
        195                 200                 205             


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln 
    210                 215                 220                 


Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro 
225                 230                 235                 240 


Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Ser 
                245                 250                 


<210> 485
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45
      _scFv Variable heavy (vh) domain

<400> 485
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 486
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vhCDR1

<400> 486
Gly Tyr Tyr Met His 
1               5   


<210> 487
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vhCDR2

<400> 487
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 488
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vhCDR3

<400> 488
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 489
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv scFv linker

<400> 489
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 490
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45
      _scFv Variable light (vl) domain

<400> 490
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 491
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vlCDR1

<400> 491
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 492
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vlCDR2

<400> 492
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 493
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv vlCDR3

<400> 493
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 494
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024355 [anti-ICOS]_H0.40_L0.45_scFv scFv

<400> 494
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Lys Pro 
        115                 120                 125             


Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly 
    130                 135                 140                 


Ser Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val 
145                 150                 155                 160 


Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg 
                165                 170                 175     


Leu Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu 
            180                 185                 190         


Ile Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser 
        195                 200                 205             


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln 
    210                 215                 220                 


Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro 
225                 230                 235                 240 


Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Ser 
                245                 250                 


<210> 495
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22
      _scFv Variable heavy (vh) domain

<400> 495
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 496
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vhCDR1

<400> 496
Gly Tyr Tyr Met His 
1               5   


<210> 497
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vhCDR2

<400> 497
Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 498
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vhCDR3

<400> 498
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 499
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv scFv linker

<400> 499
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 500
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22
      _scFv Variable light (vl) domain

<400> 500
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 501
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vlCDR1

<400> 501
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 502
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vlCDR2

<400> 502
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 503
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv vlCDR3

<400> 503
Gln Gln Ala Asn Ser Phe Pro Trp Thr 
1               5                   


<210> 504
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024356 [anti-ICOS]_H0.66_L0.22_scFv scFv

<400> 504
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Lys Pro 
        115                 120                 125             


Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly 
    130                 135                 140                 


Ser Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val 
145                 150                 155                 160 


Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg 
                165                 170                 175     


Leu Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu 
            180                 185                 190         


Ile Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser 
        195                 200                 205             


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln 
    210                 215                 220                 


Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro 
225                 230                 235                 240 


Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Ser 
                245                 250                 


<210> 505
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45
      _scFv Variable heavy (vh) domain

<400> 505
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 506
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vhCDR1

<400> 506
Gly Tyr Tyr Met His 
1               5   


<210> 507
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vhCDR2

<400> 507
Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 508
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vhCDR3

<400> 508
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 509
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv scFv linker

<400> 509
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 510
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45
      _scFv Variable light (vl) domain

<400> 510
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 511
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vlCDR1

<400> 511
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 512
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vlCDR2

<400> 512
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 513
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv vlCDR3

<400> 513
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 514
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024357 [anti-ICOS]_H0.66_L0.45_scFv scFv

<400> 514
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Lys Pro 
        115                 120                 125             


Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly 
    130                 135                 140                 


Ser Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val 
145                 150                 155                 160 


Gly Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg 
                165                 170                 175     


Leu Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu 
            180                 185                 190         


Ile Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser 
        195                 200                 205             


Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln 
    210                 215                 220                 


Pro Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro 
225                 230                 235                 240 


Trp Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Ser 
                245                 250                 


<210> 515
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40
      _scFv Variable heavy (vh) domain

<400> 515
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 516
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vhCDR1

<400> 516
Gly Tyr Tyr Met His 
1               5   


<210> 517
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vhCDR2

<400> 517
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 518
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vhCDR3

<400> 518
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 519
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv scFv linker

<400> 519
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 520
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40
      _scFv Variable light (vl) domain

<400> 520
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 521
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vlCDR1

<400> 521
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 522
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vlCDR2

<400> 522
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 523
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv vlCDR3

<400> 523
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 524
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024609 [anti-ICOS]_L0.45_H0.40_scFv scFv

<400> 524
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 525
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37
      _scFv Variable heavy (vh) domain

<400> 525
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 526
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vhCDR1

<400> 526
Gly Tyr Tyr Met His 
1               5   


<210> 527
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vhCDR2

<400> 527
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 528
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vhCDR3

<400> 528
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 529
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv scFv linker

<400> 529
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 530
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37
      _scFv Variable light (vl) domain

<400> 530
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 531
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vlCDR1

<400> 531
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 532
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vlCDR2

<400> 532
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 533
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv vlCDR3

<400> 533
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 534
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024689 [anti-ICOS]_L0.45_H0.37_scFv scFv

<400> 534
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 535
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68
      _scFv Variable heavy (vh) domain

<400> 535
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 536
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vhCDR1

<400> 536
Gly Tyr Tyr Met His 
1               5   


<210> 537
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vhCDR2

<400> 537
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 538
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vhCDR3

<400> 538
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 539
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv scFv linker

<400> 539
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 540
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68
      _scFv Variable light (vl) domain

<400> 540
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 541
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vlCDR1

<400> 541
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 542
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vlCDR2

<400> 542
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 543
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv vlCDR3

<400> 543
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 544
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024690 [anti-ICOS]_L0.45_H0.68_scFv scFv

<400> 544
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 545
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35
      _scFv Variable heavy (vh) domain

<400> 545
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 546
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vhCDR1

<400> 546
Gly Tyr Tyr Met His 
1               5   


<210> 547
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vhCDR2

<400> 547
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 548
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vhCDR3

<400> 548
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 549
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv scFv linker

<400> 549
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 550
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35
      _scFv Variable light (vl) domain

<400> 550
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 551
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vlCDR1

<400> 551
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 552
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vlCDR2

<400> 552
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 553
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv vlCDR3

<400> 553
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 554
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024691 [anti-ICOS]_L0.45_H0.35_scFv scFv

<400> 554
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 555
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34
      _scFv Variable heavy (vh) domain

<400> 555
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 556
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vhCDR1

<400> 556
Gly Tyr Tyr Met His 
1               5   


<210> 557
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vhCDR2

<400> 557
Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 558
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vhCDR3

<400> 558
Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 559
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv scFv linker

<400> 559
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 560
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34
      _scFv Variable light (vl) domain

<400> 560
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 561
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vlCDR1

<400> 561
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 562
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vlCDR2

<400> 562
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 563
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv vlCDR3

<400> 563
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 564
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024692 [anti-ICOS]_L0.45_H0.34_scFv scFv

<400> 564
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 565
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40
      _scFv Variable heavy (vh) domain

<400> 565
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 566
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vhCDR1

<400> 566
Gly Tyr Tyr Met His 
1               5   


<210> 567
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vhCDR2

<400> 567
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 568
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vhCDR3

<400> 568
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 569
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv scFv linker

<400> 569
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 570
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40
      _scFv Variable light (vl) domain

<400> 570
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 571
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vlCDR1

<400> 571
Arg Ala Ser Gln Ser Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 572
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vlCDR2

<400> 572
Ala Ala Ser Ser Leu Gln Ser 
1               5           


<210> 573
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv vlCDR3

<400> 573
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 574
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024693 [anti-ICOS]_L0.46_H0.40_scFv scFv

<400> 574
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 575
<211> 125
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40
      _scFv Variable heavy (vh) domain

<400> 575
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser 
        115                 120                 125 


<210> 576
<211> 5
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vhCDR1

<400> 576
Gly Tyr Tyr Met His 
1               5   


<210> 577
<211> 17
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vhCDR2

<400> 577
Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
1               5                   10                  15      


Gly 
    


<210> 578
<211> 16
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vhCDR3

<400> 578
Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp Val 
1               5                   10                  15      


<210> 579
<211> 20
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv scFv linker

<400> 579
Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly 
1               5                   10                  15      


Lys Pro Gly Ser 
            20  


<210> 580
<211> 107
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40
      _scFv Variable light (vl) domain

<400> 580
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ser Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys 
            100                 105         


<210> 581
<211> 11
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vlCDR1

<400> 581
Arg Ala Ser Gln Asp Ile Ser Arg Leu Leu Ala 
1               5                   10      


<210> 582
<211> 7
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vlCDR2

<400> 582
Ser Ala Ser Ser Leu Gln Ser 
1               5           


<210> 583
<211> 9
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      peptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv vlCDR3

<400> 583
Gln Gln Ala Gln Ser Phe Pro Trp Thr 
1               5                   


<210> 584
<211> 254
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP024694 [anti-ICOS]_L0.47_H0.40_scFv scFv

<400> 584
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ser Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Gly Lys Pro Gly Ser 
            100                 105                 110         


Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gly Lys Pro Gly Ser Gln 
        115                 120                 125             


Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala Ser 
    130                 135                 140                 


Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr Tyr 
145                 150                 155                 160 


Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met Gly 
                165                 170                 175     


Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe Gln 
            180                 185                 190         


Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr Met 
        195                 200                 205             


Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys Ala 
    210                 215                 220                 


Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe Asp 
225                 230                 235                 240 


Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Gly Ser 
                245                 250                 


<210> 585
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022050 [ICOS]_H0L0
      _Fab_His Heavy Chain

<400> 585
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 586
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022050 [ICOS]_H0L0
      _Fab_His Light Chain

<400> 586
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 587
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022051 [ICOS]_H0.1_L0_Fab_His Heavy Chain

<400> 587
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Glu Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 588
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022051 [ICOS]_H0.1_L0_Fab_His Light Chain

<400> 588
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 589
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022052 [ICOS]_H0.2_L0_Fab_His Heavy Chain

<400> 589
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Ser Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 590
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022052 [ICOS]_H0.2_L0_Fab_His Light Chain

<400> 590
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 591
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022053 [ICOS]_H0.3_L0_Fab_His Heavy Chain

<400> 591
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 592
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022053 [ICOS]_H0.3_L0_Fab_His Light Chain

<400> 592
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 593
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022054 [ICOS]_H0.4_L0_Fab_His Heavy Chain

<400> 593
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro Glu Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 594
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022054 [ICOS]_H0.4_L0_Fab_His Light Chain

<400> 594
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 595
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022055 [ICOS]_H0.5_L0_Fab_His Heavy Chain

<400> 595
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro Ser Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 596
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022055 [ICOS]_H0.5_L0_Fab_His Light Chain

<400> 596
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 597
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022056 [ICOS]_H0.6_L0_Fab_His Heavy Chain

<400> 597
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Gly Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 598
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022056 [ICOS]_H0.6_L0_Fab_His Light Chain

<400> 598
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 599
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022057 [ICOS]_H0.7_L0_Fab_His Heavy Chain

<400> 599
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 600
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022057 [ICOS]_H0.7_L0_Fab_His Light Chain

<400> 600
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 601
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022058 [ICOS]_H0.8_L0_Fab_His Heavy Chain

<400> 601
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Ser Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 602
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022058 [ICOS]_H0.8_L0_Fab_His Light Chain

<400> 602
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 603
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022059 [ICOS]_H0.9_L0_Fab_His Heavy Chain

<400> 603
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Glu Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 604
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022059 [ICOS]_H0.9_L0_Fab_His Light Chain

<400> 604
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 605
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022060 [ICOS]_H0.10_L0_Fab_His Heavy Chain

<400> 605
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Glu Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 606
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022060 [ICOS]_H0.10_L0_Fab_His Light Chain

<400> 606
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 607
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022061 [ICOS]_H0.11_L0_Fab_His Heavy Chain

<400> 607
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 608
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022061 [ICOS]_H0.11_L0_Fab_His Light Chain

<400> 608
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 609
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022062 [ICOS]_H0.12_L0_Fab_His Heavy Chain

<400> 609
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Ala Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 610
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022062 [ICOS]_H0.12_L0_Fab_His Light Chain

<400> 610
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 611
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022063 [ICOS]_H0.13_L0_Fab_His Heavy Chain

<400> 611
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Glu Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 612
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022063 [ICOS]_H0.13_L0_Fab_His Light Chain

<400> 612
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 613
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022064 [ICOS]_H0.14_L0_Fab_His Heavy Chain

<400> 613
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Thr Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 614
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022064 [ICOS]_H0.14_L0_Fab_His Light Chain

<400> 614
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 615
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022065 [ICOS]_H0.15_L0_Fab_His Heavy Chain

<400> 615
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Glu Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 616
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022065 [ICOS]_H0.15_L0_Fab_His Light Chain

<400> 616
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 617
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022066 [ICOS]_H0.16_L0_Fab_His Heavy Chain

<400> 617
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 618
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022066 [ICOS]_H0.16_L0_Fab_His Light Chain

<400> 618
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 619
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022067 [ICOS]_H0.17_L0_Fab_His Heavy Chain

<400> 619
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 620
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022067 [ICOS]_H0.17_L0_Fab_His Light Chain

<400> 620
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 621
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022068 [ICOS]_H0.18_L0_Fab_His Heavy Chain

<400> 621
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 622
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022068 [ICOS]_H0.18_L0_Fab_His Light Chain

<400> 622
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 623
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022069 [ICOS]_H0.19_L0_Fab_His Heavy Chain

<400> 623
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Ala Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 624
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022069 [ICOS]_H0.19_L0_Fab_His Light Chain

<400> 624
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 625
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022070 [ICOS]_H0.20_L0_Fab_His Heavy Chain

<400> 625
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Glu Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 626
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022070 [ICOS]_H0.20_L0_Fab_His Light Chain

<400> 626
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 627
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022071 [ICOS]_H0.21_L0_Fab_His Heavy Chain

<400> 627
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Gln Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 628
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022071 [ICOS]_H0.21_L0_Fab_His Light Chain

<400> 628
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 629
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022072 [ICOS]_H0.22_L0_Fab_His Heavy Chain

<400> 629
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Ser Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 630
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022072 [ICOS]_H0.22_L0_Fab_His Light Chain

<400> 630
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 631
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022073 [ICOS]_H0.23_L0_Fab_His Heavy Chain

<400> 631
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Thr Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 632
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022073 [ICOS]_H0.23_L0_Fab_His Light Chain

<400> 632
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 633
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022074 [ICOS]_H0.24_L0_Fab_His Heavy Chain

<400> 633
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 634
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022074 [ICOS]_H0.24_L0_Fab_His Light Chain

<400> 634
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 635
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022075 [ICOS]_H0.25_L0_Fab_His Heavy Chain

<400> 635
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr Glu Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 636
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022075 [ICOS]_H0.25_L0_Fab_His Light Chain

<400> 636
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 637
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022076 [ICOS]_H0.26_L0_Fab_His Heavy Chain

<400> 637
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr Gln Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 638
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022076 [ICOS]_H0.26_L0_Fab_His Light Chain

<400> 638
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 639
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022077 [ICOS]_H0.27_L0_Fab_His Heavy Chain

<400> 639
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr Ser Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 640
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022077 [ICOS]_H0.27_L0_Fab_His Light Chain

<400> 640
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 641
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022078 [ICOS]_H0.28_L0_Fab_His Heavy Chain

<400> 641
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr Tyr Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 642
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022078 [ICOS]_H0.28_L0_Fab_His Light Chain

<400> 642
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 643
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022079 [ICOS]_H0.29_L0_Fab_His Heavy Chain

<400> 643
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Ala Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 644
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022079 [ICOS]_H0.29_L0_Fab_His Light Chain

<400> 644
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 645
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022080 [ICOS]_H0.30_L0_Fab_His Heavy Chain

<400> 645
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Glu Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 646
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022080 [ICOS]_H0.30_L0_Fab_His Light Chain

<400> 646
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 647
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022081 [ICOS]_H0.31_L0_Fab_His Heavy Chain

<400> 647
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Gln Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 648
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022081 [ICOS]_H0.31_L0_Fab_His Light Chain

<400> 648
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 649
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022082 [ICOS]_H0.32_L0_Fab_His Heavy Chain

<400> 649
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Ser Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 650
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022082 [ICOS]_H0.32_L0_Fab_His Light Chain

<400> 650
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 651
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022083 [ICOS]_H0.33_L0_Fab_His Heavy Chain

<400> 651
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Thr Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 652
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022083 [ICOS]_H0.33_L0_Fab_His Light Chain

<400> 652
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 653
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022084 [ICOS]_H0.34_L0_Fab_His Heavy Chain

<400> 653
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 654
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022084 [ICOS]_H0.34_L0_Fab_His Light Chain

<400> 654
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 655
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022085 [ICOS]_H0_L0.1_Fab_His Heavy Chain

<400> 655
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 656
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022085 [ICOS]_H0_L0.1_Fab_His Light Chain

<400> 656
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 657
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022086 [ICOS]_H0_L0.2_Fab_His Heavy Chain

<400> 657
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 658
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022086 [ICOS]_H0_L0.2_Fab_His Light Chain

<400> 658
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 659
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022087 [ICOS]_H0_L0.3_Fab_His Heavy Chain

<400> 659
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 660
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022087 [ICOS]_H0_L0.3_Fab_His Light Chain

<400> 660
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 661
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022088 [ICOS]_H0_L0.4_Fab_His Heavy Chain

<400> 661
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 662
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022088 [ICOS]_H0_L0.4_Fab_His Light Chain

<400> 662
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 663
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022089 [ICOS]_H0_L0.5_Fab_His Heavy Chain

<400> 663
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 664
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022089 [ICOS]_H0_L0.5_Fab_His Light Chain

<400> 664
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 665
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022090 [ICOS]_H0_L0.6_Fab_His Heavy Chain

<400> 665
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 666
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022090 [ICOS]_H0_L0.6_Fab_His Light Chain

<400> 666
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Trp 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 667
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab_His Heavy Chain

<400> 667
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 668
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022091 [ICOS]_H0_L0.7_Fab_His Light Chain

<400> 668
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 669
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022092 [ICOS]_H0_L0.8_Fab_His Heavy Chain

<400> 669
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 670
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022092 [ICOS]_H0_L0.8_Fab_His Light Chain

<400> 670
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Trp 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 671
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022093 [ICOS]_H0_L0.9_Fab_His Heavy Chain

<400> 671
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 672
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022093 [ICOS]_H0_L0.9_Fab_His Light Chain

<400> 672
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 673
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022094 [ICOS]_H0_L0.10_Fab_His Heavy Chain

<400> 673
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 674
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022094 [ICOS]_H0_L0.10_Fab_His Light Chain

<400> 674
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 675
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022095 [ICOS]_H0_L0.11_Fab_His Heavy Chain

<400> 675
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 676
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022095 [ICOS]_H0_L0.11_Fab_His Light Chain

<400> 676
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ser Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 677
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022096 [ICOS]_H0_L0.12_Fab_His Heavy Chain

<400> 677
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 678
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022096 [ICOS]_H0_L0.12_Fab_His Light Chain

<400> 678
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Thr Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 679
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022101 [ICOS]_H0_L0.13_Fab_His Heavy Chain

<400> 679
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 680
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022101 [ICOS]_H0_L0.13_Fab_His Light Chain

<400> 680
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Glu Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 681
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022102 [ICOS]_H0_L0.14_Fab_His Heavy Chain

<400> 681
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 682
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022102 [ICOS]_H0_L0.14_Fab_His Light Chain

<400> 682
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ser Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 683
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022103 [ICOS]_H0_L0.15_Fab_His Heavy Chain

<400> 683
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 684
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022103 [ICOS]_H0_L0.15_Fab_His Light Chain

<400> 684
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 685
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022104 [ICOS]_H0_L0.16_Fab_His Heavy Chain

<400> 685
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 686
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022104 [ICOS]_H0_L0.16_Fab_His Light Chain

<400> 686
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Gln Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 687
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022105 [ICOS]_H0_L0.17_Fab_His Heavy Chain

<400> 687
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 688
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022105 [ICOS]_H0_L0.17_Fab_His Light Chain

<400> 688
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Tyr Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 689
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022106 [ICOS]_H0_L0.18_Fab_His Heavy Chain

<400> 689
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 690
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022106 [ICOS]_H0_L0.18_Fab_His Light Chain

<400> 690
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Thr Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 691
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022107 [ICOS]_H0_L0.19_Fab_His Heavy Chain

<400> 691
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 692
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022107 [ICOS]_H0_L0.19_Fab_His Light Chain

<400> 692
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Thr Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 693
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022108 [ICOS]_H0_L0.20_Fab_His Heavy Chain

<400> 693
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 694
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022108 [ICOS]_H0_L0.20_Fab_His Light Chain

<400> 694
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Tyr Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 695
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022767 [ICOS]_H0_L0.21_Fab_His Heavy Chain

<400> 695
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 696
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022767 [ICOS]_H0_L0.21_Fab_His Light Chain

<400> 696
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 697
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022768 [ICOS]_H0_L0.22_Fab_His Heavy Chain

<400> 697
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 698
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022768 [ICOS]_H0_L0.22_Fab_His Light Chain

<400> 698
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 699
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022769 [ICOS]_H0_L0.23_Fab_His Heavy Chain

<400> 699
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 700
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022769 [ICOS]_H0_L0.23_Fab_His Light Chain

<400> 700
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 701
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022770 [ICOS]_H0_L0.24_Fab_His Heavy Chain

<400> 701
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 702
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022770 [ICOS]_H0_L0.24_Fab_His Light Chain

<400> 702
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 703
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022771 [ICOS]_H0_L0.25_Fab_His Heavy Chain

<400> 703
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 704
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022771 [ICOS]_H0_L0.25_Fab_His Light Chain

<400> 704
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 705
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022772 [ICOS]_H0_L0.26_Fab_His Heavy Chain

<400> 705
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 706
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022772 [ICOS]_H0_L0.26_Fab_His Light Chain

<400> 706
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 707
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022773 [ICOS]_H0_L0.27_Fab_His Heavy Chain

<400> 707
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 708
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022773 [ICOS]_H0_L0.27_Fab_His Light Chain

<400> 708
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 709
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022774 [ICOS]_H0_L0.28_Fab_His Heavy Chain

<400> 709
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 710
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022774 [ICOS]_H0_L0.28_Fab_His Light Chain

<400> 710
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 711
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022775 [ICOS]_H0_L0.29_Fab_His Heavy Chain

<400> 711
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 712
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022775 [ICOS]_H0_L0.29_Fab_His Light Chain

<400> 712
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 713
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022776 [ICOS]_H0_L0.30_Fab_His Heavy Chain

<400> 713
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 714
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022776 [ICOS]_H0_L0.30_Fab_His Light Chain

<400> 714
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 715
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022777 [ICOS]_H0_L0.31_Fab_His Heavy Chain

<400> 715
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 716
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022777 [ICOS]_H0_L0.31_Fab_His Light Chain

<400> 716
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 717
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022778 [ICOS]_H0_L0.32_Fab_His Heavy Chain

<400> 717
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 718
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022778 [ICOS]_H0_L0.32_Fab_His Light Chain

<400> 718
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 719
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022779 [ICOS]_H0_L0.33_Fab_His Heavy Chain

<400> 719
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 720
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022779 [ICOS]_H0_L0.33_Fab_His Light Chain

<400> 720
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 721
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab_His Heavy Chain

<400> 721
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 722
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022780 [ICOS]_H0_L0.34_Fab_His Light Chain

<400> 722
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 723
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022781 [ICOS]_H0_L0.35_Fab_His Heavy Chain

<400> 723
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 724
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022781 [ICOS]_H0_L0.35_Fab_His Light Chain

<400> 724
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 725
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab_His Heavy Chain

<400> 725
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 726
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022782 [ICOS]_H0_L0.36_Fab_His Light Chain

<400> 726
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 727
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab_His Heavy Chain

<400> 727
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 728
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022783 [ICOS]_H0_L0.37_Fab_His Light Chain

<400> 728
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 729
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab_His Heavy Chain

<400> 729
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 730
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022784 [ICOS]_H0_L0.38_Fab_His Light Chain

<400> 730
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 731
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022860 [ICOS]_H0_L0.42_Fab_His Heavy Chain

<400> 731
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 732
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022860 [ICOS]_H0_L0.42_Fab_His Light Chain

<400> 732
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 733
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022861 [ICOS]_H0_L0.43_Fab_His Heavy Chain

<400> 733
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 734
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022861 [ICOS]_H0_L0.43_Fab_His Light Chain

<400> 734
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 735
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022862 [ICOS]_H0_L0.44_Fab_His Heavy Chain

<400> 735
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Ser Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 736
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022862 [ICOS]_H0_L0.44_Fab_His Light Chain

<400> 736
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 737
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022863 [ICOS]_H0.35_L0.38_Fab_His Heavy Chain

<400> 737
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 738
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022863 [ICOS]_H0.35_L0.38_Fab_His Light Chain

<400> 738
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 739
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022864 [ICOS]_H0.35_L0.42_Fab_His Heavy Chain

<400> 739
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 740
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022864 [ICOS]_H0.35_L0.42_Fab_His Light Chain

<400> 740
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 741
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022865 [ICOS]_H0.35_L0.43_Fab_His Heavy Chain

<400> 741
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 742
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022865 [ICOS]_H0.35_L0.43_Fab_His Light Chain

<400> 742
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 743
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022866 [ICOS]_H0.35_L0.44_Fab_His Heavy Chain

<400> 743
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 744
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022866 [ICOS]_H0.35_L0.44_Fab_His Light Chain

<400> 744
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 745
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022867 [ICOS]_H0.61_L0.38_Fab_His Heavy Chain

<400> 745
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 746
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022867 [ICOS]_H0.61_L0.38_Fab_His Light Chain

<400> 746
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 747
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022868 [ICOS]_H0.61_L0.42_Fab_His Heavy Chain

<400> 747
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 748
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022868 [ICOS]_H0.61_L0.42_Fab_His Light Chain

<400> 748
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 749
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022869 [ICOS]_H0.61_L0.43_Fab_His Heavy Chain

<400> 749
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 750
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022869 [ICOS]_H0.61_L0.43_Fab_His Light Chain

<400> 750
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 751
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022870 [ICOS]_H0.61_L0.44_Fab_His Heavy Chain

<400> 751
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 752
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022870 [ICOS]_H0.61_L0.44_Fab_His Light Chain

<400> 752
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Tyr 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 753
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022871 [ICOS]_H0.24_L0.38_Fab_His Heavy Chain

<400> 753
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 754
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022871 [ICOS]_H0.24_L0.38_Fab_His Light Chain

<400> 754
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 755
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022872 [ICOS]_H0.37_L0.38_Fab_His Heavy Chain

<400> 755
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 756
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022872 [ICOS]_H0.37_L0.38_Fab_His Light Chain

<400> 756
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 757
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022873 [ICOS]_H0.40_L0.38_Fab_His Heavy Chain

<400> 757
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 758
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022873 [ICOS]_H0.40_L0.38_Fab_His Light Chain

<400> 758
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 759
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022874 [ICOS]_H0.44_L0.38_Fab_His Heavy Chain

<400> 759
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Glu Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 760
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022874 [ICOS]_H0.44_L0.38_Fab_His Light Chain

<400> 760
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 761
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022875 [ICOS]_H0.56_L0.38_Fab_His Heavy Chain

<400> 761
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 762
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022875 [ICOS]_H0.56_L0.38_Fab_His Light Chain

<400> 762
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 763
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022876 [ICOS]_H0.62_L0.38_Fab_His Heavy Chain

<400> 763
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Glu Asp Thr Ser Thr Asp Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 764
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022876 [ICOS]_H0.62_L0.38_Fab_His Light Chain

<400> 764
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 765
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022929 [ICOS]_H0.35_L0.36_Fab_His Heavy Chain

<400> 765
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 766
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022929 [ICOS]_H0.35_L0.36_Fab_His Light Chain

<400> 766
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 767
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022930 [ICOS]_H0.61_L0.36_Fab_His Heavy Chain

<400> 767
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 768
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022930 [ICOS]_H0.61_L0.36_Fab_His Light Chain

<400> 768
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 769
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022938 [ICOS]_H0.24_L0.37_Fab_His Heavy Chain

<400> 769
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 770
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022938 [ICOS]_H0.24_L0.37_Fab_His Light Chain

<400> 770
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 771
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022939 [ICOS]_H0.37_L0.37_Fab_His Heavy Chain

<400> 771
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 772
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022939 [ICOS]_H0.37_L0.37_Fab_His Light Chain

<400> 772
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 773
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022940 [ICOS]_H0.40_L0.37_Fab_His Heavy Chain

<400> 773
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 774
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022940 [ICOS]_H0.40_L0.37_Fab_His Light Chain

<400> 774
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 775
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022941 [ICOS]_H0.44_L0.37_Fab_His Heavy Chain

<400> 775
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Glu Ser Thr Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 776
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022941 [ICOS]_H0.44_L0.37_Fab_His Light Chain

<400> 776
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 777
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022942 [ICOS]_H0.56_L0.37_Fab_His Heavy Chain

<400> 777
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Ile Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 778
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022942 [ICOS]_H0.56_L0.37_Fab_His Light Chain

<400> 778
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 779
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022943 [ICOS]_H0.62_L0.37_Fab_His Heavy Chain

<400> 779
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Glu Asp Thr Ser Thr Asp Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 780
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022943 [ICOS]_H0.62_L0.37_Fab_His Light Chain

<400> 780
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 781
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022944 [ICOS]_H0.35_L0.34_Fab_His Heavy Chain

<400> 781
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 782
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022944 [ICOS]_H0.35_L0.34_Fab_His Light Chain

<400> 782
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 783
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022945 [ICOS]_H0.35_L0.35_Fab_His Heavy Chain

<400> 783
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 784
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022945 [ICOS]_H0.35_L0.35_Fab_His Light Chain

<400> 784
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 785
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022946 [ICOS]_H0.35_L0.37_Fab_His Heavy Chain

<400> 785
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 786
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022946 [ICOS]_H0.35_L0.37_Fab_His Light Chain

<400> 786
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 787
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022947 [ICOS]_H0.61_L0.34_Fab_His Heavy Chain

<400> 787
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 788
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022947 [ICOS]_H0.61_L0.34_Fab_His Light Chain

<400> 788
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 789
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022948 [ICOS]_H0.61_L0.35_Fab_His Heavy Chain

<400> 789
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 790
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022948 [ICOS]_H0.61_L0.35_Fab_His Light Chain

<400> 790
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Ser Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 791
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022949 [ICOS]_H0.61_L0.37_Fab_His Heavy Chain

<400> 791
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ile Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Arg Leu Arg Ser Asp Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 792
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP022949 [ICOS]_H0.61_L0.37_Fab_His Light Chain

<400> 792
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Ala Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 793
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023086 [ICOS]_H0.37_L0_Fab_His Heavy Chain

<400> 793
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 794
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023086 [ICOS]_H0.37_L0_Fab_His Light Chain

<400> 794
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 795
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023087 [ICOS]_H0.64_L0_Fab_His Heavy Chain

<400> 795
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Gly Thr Asn Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Glu Asp Thr Ser Thr Asp Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 796
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023087 [ICOS]_H0.64_L0_Fab_His Light Chain

<400> 796
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 797
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab_His Heavy Chain

<400> 797
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 798
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023088 [ICOS]_H0.66_L0_Fab_His Light Chain

<400> 798
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 799
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023089 [ICOS]_H0.67_L0_Fab_His Heavy Chain

<400> 799
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Glu Asp Thr Ser Thr Asp Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 800
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023089 [ICOS]_H0.67_L0_Fab_His Light Chain

<400> 800
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Gly Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Asn Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


<210> 801
<211> 230
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab_His Heavy Chain

<400> 801
Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 
1               5                   10                  15      


Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Gly Tyr 
            20                  25                  30          


Tyr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Trp Ile Asn Pro His Ser Gly Glu Thr Ile Tyr Ala Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Met Thr Arg Asp Thr Ser Ile Ser Thr Ala Tyr 
65                  70                  75                  80  


Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 
                85                  90                  95      


Ala Arg Thr Tyr Tyr Tyr Asp Thr Ser Gly Tyr Tyr His Asp Ala Phe 
            100                 105                 110         


Asp Val Trp Gly Gln Gly Thr Met Val Thr Val Ser Ser Ala Ser Thr 
        115                 120                 125             


Lys Gly Pro Ser Val Phe Pro Leu Ala Pro Ser Ser Lys Ser Thr Ser 
    130                 135                 140                 


Gly Gly Thr Ala Ala Leu Gly Cys Leu Val Lys Asp Tyr Phe Pro Glu 
145                 150                 155                 160 


Pro Val Thr Val Ser Trp Asn Ser Gly Ala Leu Thr Ser Gly Val His 
                165                 170                 175     


Thr Phe Pro Ala Val Leu Gln Ser Ser Gly Leu Tyr Ser Leu Ser Ser 
            180                 185                 190         


Val Val Thr Val Pro Ser Ser Ser Leu Gly Thr Gln Thr Tyr Ile Cys 
        195                 200                 205             


Asn Val Asn His Lys Pro Ser Asn Thr Lys Val Asp Lys Lys Val Glu 
    210                 215                 220                 


Pro Lys Ser Cys Gly Ser 
225                 230 


<210> 802
<211> 214
<212> PRT
<213> Artificial Sequence

<220>
<223> Description of Artificial Sequence: Synthetic
      polypeptide

<220>
<223> XENP023409 [ICOS]_H0.66_L0.34_Fab_His Light Chain

<400> 802
Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Val Ser Ala Ser Val Gly 
1               5                   10                  15      


Asp Arg Val Thr Ile Thr Cys Gln Ala Ser Gln Asp Ile Ser Arg Leu 
            20                  25                  30          


Leu Ala Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 
        35                  40                  45              


Tyr Val Ala Ser Ser Leu Gln Ser Gly Val Pro Ser Arg Phe Ser Gly 
    50                  55                  60                  


Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 
65                  70                  75                  80  


Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ala Glu Ser Phe Pro Trp 
                85                  90                  95      


Thr Phe Gly Gln Gly Thr Lys Val Glu Ile Lys Arg Thr Val Ala Ala 
            100                 105                 110         


Pro Ser Val Phe Ile Phe Pro Pro Ser Asp Glu Gln Leu Lys Ser Gly 
        115                 120                 125             


Thr Ala Ser Val Val Cys Leu Leu Asn Asn Phe Tyr Pro Arg Glu Ala 
    130                 135                 140                 


Lys Val Gln Trp Lys Val Asp Asn Ala Leu Gln Ser Gly Asn Ser Gln 
145                 150                 155                 160 


Glu Ser Val Thr Glu Gln Asp Ser Lys Asp Ser Thr Tyr Ser Leu Ser 
                165                 170                 175     


Ser Thr Leu Thr Leu Ser Lys Ala Asp Tyr Glu Lys His Lys Val Tyr 
            180                 185                 190         


Ala Cys Glu Val Thr His Gln Gly Leu Ser Ser Pro Val Thr Lys Ser 
        195                 200                 205             


Phe Asn Arg Gly Glu Cys 
    210                 


