L-Arginine, L-methionyl-L-a-aspartyl-L-methionyl-L-seryl-L-asparaginyl-L-tyrosyl-L-ser yl-L-methionyl-L-a-aspartyl-L-methionyl-L-tyrosylglycyl-L-arginyl-L-tyrosyl-L- methionyl-L-a-aspartyl-L-arginy