L-Alanine, L-a-aspartyl-L-valyl-L-leucyl-L-methionyl-L-threonyl-L-glutaminyl-L-threonyl- L-prolyl-L-leucyl-L-threonyl-L-leucyl-L-seryl-L-valyl-L-threonyl-L-isoleucylglyc yl-L-glutaminyl-L-prolyl-