>4f1f_D mol:protein length:30  Insulin B chain
FVNQHLCGSHLVEALYLVCGERGFFYTPKT
>4f1f_D mol:protein length:30  Insulin B chain
FVNQHLCGSHLVEALYLVCGERGFFYTPKT
>4f1f_C mol:protein length:21  Insulin A chain
GIVEQCCTSICSLYQLENYCN
>4f1f_A mol:protein length:21  Insulin A chain
GIVEQCCTSICSLYQLENYCN
>4f1f_B mol:protein length:30  Insulin B chain
FVNQHLCGSHLVEALYLVCGERGFFYTPKT