>2ws4_B mol:protein length:26 INSULIN B CHAIN FVNQHLCGSHLVEALYLVCGERGFFP >2ws4_A mol:protein length:21 INSULIN A CHAIN GIVEQCCTSICSLYQLENYCN >2ws4_B mol:protein length:26 INSULIN B CHAIN FVNQHLCGSHLVEALYLVCGERGFFP