L-Serine, L-histidyl-L-seryl-L-a-aspartyl-L-alanyl-L-threonyl-L-phenylalanyl-L-threonyl- L-a-aspartyl-L-asparaginyl-L-tyrosyl-L-threonyl-L-arginyl-L-leucyl-L-arginyl- L-lysyl-L-glutaminyl-L-valyl-L