>4iuz_A mol:protein length:21 Insulin A chain GIVEQCCTSICSLYQLENYCN >4iuz_B mol:protein length:30 Insulin B chain FVNQHLCGSDLVEALYLVCGERGFFYTKPT >4iuz_B mol:protein length:30 Insulin B chain FVNQHLCGSDLVEALYLVCGERGFFYTKPT