>3i40_B mol:protein length:30 Insulin B chain FVNQHLCGSHLVEALYLVCGERGFFYTPKA >3i40_B mol:protein length:30 Insulin B chain FVNQHLCGSHLVEALYLVCGERGFFYTPKA >3i40_A mol:protein length:21 Insulin A chain GIVEQCCTSICSLYQLENYCN