                         SEQUENCE LISTING

<110>  Regeneron Pharmaceuticals, Inc.
 
<120>  A Heavy Peptide Approach to Accurately Measure Unprocessed 
       C-terminal Lysine in Antibodies

<130>  REGN 10760 (REGN-003)

<150>  US 63/041,015
<151>  2020-06-18

<160>  4     

<170>  PatentIn version 3.5

<210>  1
<211>  7
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  Synthetic

<400>  1

Ser Leu Ser Leu Ser Leu Gly 
1               5           


<210>  2
<211>  8
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  Synthetic

<400>  2

Ser Leu Ser Leu Ser Leu Gly Lys 
1               5               


<210>  3
<211>  7
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  Synthetic

<400>  3

Ser Leu Ser Leu Ser Pro Gly 
1               5           


<210>  4
<211>  8
<212>  PRT
<213>  Artificial Sequence

<220>
<223>  Synthetic

<400>  4

Ser Leu Ser Leu Ser Pro Gly Lys 
1               5               


