L-Serine, L-methionylglycyl-L-cysteinyl-L-a-aspartyl-L-leucyl-L-glutaminyl-L-arginyl-L- valylglycyl-L-cysteinyl-L-alanyl-L-valyl-L-seryl-L-alanyl-L-threonyl-L-valyl-L-a- glutamyl-L-threonyl-L-cyste