122560-16-1 L-Methionine, L-threonyl-L-arginyl-L-alpha-aspartyl-L-valyl-L-leucyl-L-asparaginyl-L-leucyl-L-tyrosyl-L-alanyl-L-alpha-aspartyl-L-phenylalanyl-L-isoleucyl-L-alanyl-L-seryl- L-Threonyl-L-arginyl-L-alpha-aspartyl-L-valyl-L-leucyl-L-asparaginyl-L-leucyl-L-tyrosyl-L-alanyl-L-alpha-aspartyl-L-phenylalanyl-L-isoleucyl-L-alanyl-L-seryl-L-methionine MT162-176 antigen Polyoma peptide antigen MT162-176