H-Ser-Ala-Lys-Glu-Leu-Arg-Cys-Gln-Cys-Ile-Lys-Thr-Tyr-Ser-Lys-Pro-Phe-His-Pro-Lys-Phe-Ile-Lys-Glu-Leu-Arg-Val-Ile-Glu-Ser-Gly-Pro-His-Cys-Ala-Asn-Thr-Glu-Ile-Ile-Val-Lys-Leu-Ser-Asp-Gly-Arg-Glu-Leu-Cys-Leu-Asp-Pro-Lys-Glu-Asn-Trp-Val-Gln-Arg-Val-Val-Glu-Lys-Phe-Leu-Lys-Arg-Ala-Glu-Asn-Ser-OH (Disulfide bonds between Cys⁷ and Cys³⁴/Cys⁹ and Cys⁵⁰)