821018-13-7

L-Alanine,L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-L-alanyl-L-alanyl-L-prolyl-