>1sf1_B mol:protein length:30  Insulin
FVNQHLCGSHLVEALYLVCGERGFFYTPKT
>1sf1_A mol:protein length:21  INSULIN A CHAIN
GIVEQCCTSICSLYQLENYCN
>1sf1_B mol:protein length:30  Insulin
FVNQHLCGSHLVEALYLVCGERGFFYTPKT