N-acetyl-L-methionyl-L-lysyl(1+) residue
n-acetyl-l-methionyl-l-lysyl(1+) residue
A cationic peptidyl group obtained by protonation of the side-chain amino group of <em>N</em>-acetyl-<small>L</small>-methionyl-<small>L</small>-lysyl residue; major species at pH 7.3.