>1b2a_A mol:protein length:21  PROTEIN (INSULIN A CHAIN)
GIVEQCCTSICSLYQLENYCN
>1b2a_B mol:protein length:30  PROTEIN (INSULIN B CHAIN)
FVNQHLCGSHLVEALYLVCGERGFFYTPKA
>1b2a_B mol:protein length:30  PROTEIN (INSULIN B CHAIN)
FVNQHLCGSHLVEALYLVCGERGFFYTPKA