H-Asp-Thr-Asn-Phe-Pro-Ile-Cys-Ile-Phe-Cys-Cys-Lys-Cys-Cys-Asn-Asn-Ser-Gln-Cys-Gly-Ile-Cys-Cys-Lys-Thr-OH Trifluoroacetate (Disulfide bonds between Cys⁷ and Cys²³/Cys¹⁰ and Cys²²/Cys¹¹ and Cys¹⁹/Cys¹³ and Cys¹⁴)