氨基酸序列 Gly-Trp-Thr-Leu-Asn-Ser-A?la-Gly-Tyr-Leu-Leu-Gly-Pr?o-His-Ala-Val-Gly-Asn-His?-Arg-Ser-Phe-Ser-Asp-Lys-?Asn-Gly-Leu-Thr-Ser
