ser-his-leu-val-glu Achain gin-eys-cys-thr-ser-ile-cys-ser- leu-tyr-gln-leu-glu Bchain phe-val-asn-gln-his-leu-cys-gly- ser-his-leu-val-glu III Achain asn-tyr-cys-asn Bchain ala-leu-tyr-leu-val-cys-gly-glu Achain asn-tyr-cys-asn Bchain ata-leu-tyr-leu-val-cys-gly-glu III Arg-gly-phc-phe-tyr-thr-pro-lys-thr Ar