(A chain) Gly Ile Val Glu Gln Cys Cys Thr Ser Ile Cys Ser Leu Tyr
Gln Leu Glu Asn Tyr Cys Asn (Disulfide bridge: 6-11)
(B chain) Phe Val Asn Gln His Leu Cys Gly Ser His Leu Val Glu Ala
Leu Tyr Leu Val Cys Gly Glu Arg Gly Phe Phe Tyr Thr Pro Lys Thr
(Disulfide bridge: A7-B7; A20-B19) | 
