NH2 - Ser - Lys - Met - Lys - Lys - Cys - Glu - Phe - Ala - Lys - Ile - Ala - Lys - Glu - Gln - His - Met - Asp - Gly - Tyr - His - Gly - Val - Ser - Leu - Ala - Asp - Trp - Val - Cys - Leu - Val - Asn - Asn - Glu - Ser - Asp - Phe - Asn - Thr - Lys - Ala - Ile - Asn - Arg - Asn - Lys - Gly - Ile - COOH