Ser-Leu-Arg-Arg-Ser-pSer-Cys-Phe-Gly-Gly-Arg-Ile-Asp-Arg-Ile-Gly-Ala-Gln-Ser-Gly-Leu-Gly-Cys-Asn-Ser-Phe-Arg-Tyr(Disulfide bridge 7-23)
C₁₂₈H₂₀₆N₄₉O₃