(gamma-L-glutamyl) N-terminal alpha-amino-acid zwitterionic residue
(gamma-l-glutamyl) n-terminal alpha-amino-acid zwitterionic residue
A zwitterionic group obtained by transfer of a proton from the carboxy to the amino group of any (γ-<small>L</small>-glutamyl) N-terminal α-amino-acid residue; major species at pH 7.3.