L-Arginine, L-alanyl-L-tyrosyl-L-a-aspartyl-L-prolyl-L-a-aspartyl-L-tyrosyl-L-a-glutamyl- L-arginyl-L-alanyl-L-tyrosyl-L-seryl-L-prolyl-L-a-glutamyl-L-tyrosyl-L-arginyl-