H-Cys-Lys-Gly-Lys-Gly-Ala-Pro-Cys-Arg-Lys-Thr-Met-Tyr-Asp-Cys-Cys-Ser-Gly-Ser-Cys-Gly-Arg-Arg-Gly-Lys-Cys-NH2 (Disulfide bonds between Cys¹ and Cys¹⁶/Cys⁸ and Cys²⁰/Cys¹⁵ and Cys²⁶)