                         SEQUENCE LISTING

<110>  Xencor, Inc.
       Saville, Michael Wayne
       Foster, Paul
 
<120>  BISPECIFIC ANTIBODIES THAT BIND CD20 AND CD3

<130>  067461-5193-WO

<140>  Filed herewith
<141>  2017-06-01

<150>  US 62/344,322
<151>  2016-06-01

<150>  US 62/383,832
<151>  2016-09-06

<160>  21    

<170>  PatentIn version 3.5

<210>  1
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13676 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  1

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Asp Thr Ser Tyr Asn Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Lys 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 Ser Thr Tyr Tyr Gly Gly Asp Trp Tyr Phe Asn Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  2
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13676 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  2

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


<210>  3
<211>  213
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13676 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  3

Gln Ile Val Leu 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 Ser Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr Ser Asn Pro Pro 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>  4
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13677 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  4

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  5
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13677 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  5

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


<210>  6
<211>  213
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP13677 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  6

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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>  7
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14388 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  7

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  8
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14388 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  8

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 Thr Tyr 
            20                  25                  30          


Ala Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


<210>  9
<211>  213
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14388 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  9

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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>  10
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14389 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  10

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  11
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14389 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  11

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Ala Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


<210>  12
<211>  213
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14389 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  12

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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>  13
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14390 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  13

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  14
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14390 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  14

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Ser Tyr Val Ser Trp Phe 
            100                 105                 110         


Asp Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


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

<220>
<223>  XENP14390 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  15

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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>  16
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14392 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  16

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  17
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14392 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  17

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Glu Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


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

<220>
<223>  XENP14392 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  18

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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>  19
<211>  450
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14393 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 1

<400>  19

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          


Asn Met His Trp Val Arg Gln Ala Pro Gly Gln Arg Leu Glu Trp Met 
        35                  40                  45              


Gly Ala Ile Tyr Pro Gly Asn Gly Ala Thr Ser Tyr Ser Gln Lys Phe 
    50                  55                  60                  


Gln Gly Arg Val Thr Ile Thr Ala Asp Thr Ser Ala 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 Ser Tyr Tyr Met Gly Gly Asp Trp Tyr Phe Asp Val Trp Gly 
            100                 105                 110         


Ala 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 Asp 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 Glu 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 Asp Val Ser Gly Phe Tyr Pro Ser Asp Ile Ala Val Glu Trp 
    370                 375                 380                 


Glu Ser Asp 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 Glu Gln Gly Asp 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>  20
<211>  485
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  XENP14393 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Heavy Chain 2

<400>  20

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 Thr Tyr 
            20                  25                  30          


Ala Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 
        35                  40                  45              


Gly Arg Ile Arg Ser Lys Tyr Asn Asn Tyr Ala Thr Tyr Tyr Ala Asp 
    50                  55                  60                  


Ser 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 Arg Ala Glu Asp Thr Ala Val Tyr 
                85                  90                  95      


Tyr Cys Val Arg His Gly Asn Phe Gly Asp Pro Tyr Val Ser Trp Phe 
            100                 105                 110         


Ala Tyr Trp Gly Gln Gly Thr Leu 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 Gln Ala Val Val Thr Gln Glu Pro Ser Leu Thr Val Ser Pro Gly 
145                 150                 155                 160 


Gly Thr Val Thr Leu Thr Cys Gly Ser Ser Thr Gly Ala Val Thr Thr 
                165                 170                 175     


Ser Asn Tyr Ala Asn Trp Val Gln Gln Lys Pro Gly Lys Ser Pro Arg 
            180                 185                 190         


Gly Leu Ile Gly Gly Thr Asn Lys Arg Ala Pro Gly Val Pro Ala Arg 
        195                 200                 205             


Phe Ser Gly Ser Leu Leu Gly Gly Lys Ala Ala Leu Thr Ile Ser Gly 
    210                 215                 220                 


Ala Gln Pro Glu Asp Glu Ala Asp Tyr Tyr Cys Ala Leu Trp Tyr Ser 
225                 230                 235                 240 


Asn His Trp Val Phe Gly Gly Gly Thr Lys Leu Thr Val Leu Glu Pro 
                245                 250                 255     


Lys Ser Ser Asp Lys Thr His Thr Cys Pro Pro Cys Pro Ala Pro Pro 
            260                 265                 270         


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


Leu Met Ile Ser Arg Thr Pro Glu Val Thr Cys Val Val Val Asp Val 
    290                 295                 300                 


Lys His Glu Asp Pro Glu Val Lys Phe Asn Trp Tyr Val Asp Gly Val 
305                 310                 315                 320 


Glu Val His Asn Ala Lys Thr Lys Pro Arg Glu Glu Gln Tyr Asn Ser 
                325                 330                 335     


Thr Tyr Arg Val Val Ser Val Leu Thr Val Leu His Gln Asp Trp Leu 
            340                 345                 350         


Asn Gly Lys Glu Tyr Lys Cys Lys Val Ser Asn Lys Ala Leu Pro Ala 
        355                 360                 365             


Pro Ile Glu Lys Thr Ile Ser Lys Ala Lys Gly Gln Pro Arg Glu Pro 
    370                 375                 380                 


Gln Val Tyr Thr Leu Pro Pro Ser Arg Glu Gln Met Thr Lys Asn Gln 
385                 390                 395                 400 


Val Lys Leu Thr Cys Leu Val Lys Gly Phe Tyr Pro Ser Asp Ile Ala 
                405                 410                 415     


Val Glu Trp Glu Ser Asn Gly Gln Pro Glu Asn Asn Tyr Lys Thr Thr 
            420                 425                 430         


Pro Pro Val Leu Asp Ser Asp Gly Ser Phe Phe Leu Tyr Ser Lys Leu 
        435                 440                 445             


Thr Val Asp Lys Ser Arg Trp Gln Gln Gly Asn Val Phe Ser Cys Ser 
    450                 455                 460                 


Val Met His Glu Ala Leu His Asn His Tyr Thr Gln Lys Ser Leu Ser 
465                 470                 475                 480 


Leu Ser Pro Gly Lys 
                485 


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

<220>
<223>  XENP14393 Anti-CD20 x Anti-CD3 Fab-scFv-Fc Light Chain

<400>  21

Gln Ile Val Leu 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 Trp Ser Val Ser Tyr Ile 
            20                  25                  30          


His Trp Phe Gln Gln Lys Pro Gly Lys Ser Pro Lys Pro Leu Ile Tyr 
        35                  40                  45              


Ala Thr Ser Asn Leu Ala Ser Gly Val Pro Val Arg Phe Ser Gly Ser 
    50                  55                  60                  


Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 
65                  70                  75                  80  


Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Thr His Asn Pro Pro 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             


