Glycine, L-a-glutamyl-L-cysteinyl-L-phenylalanyl-L-a-aspartyl-L-leucyl-L-leucyl-L-val yl-L-arginyl-L-arginyl-L-tryptophyl-L-valyl-L-prolyl-L-cysteinyl-L-a-glutamyl-L- methionyl-L-leucyl-