L-Cysteine, L-prolyl-L-tryptophyl-L-cysteinyl-L-histidyl-L-threonyl-L-threonyl-L-asparagin yl-L-seryl-L-glutaminyl-L-valyl-L-arginyl-L-tryptophyl-L-a-glutamyl-L-tyrosyl-L -cysteinyl-L-lysyl-L-isole