Cysteine Glycine ATP ADP+P ATP ADP+P Glutamate y-Glu-Cys-Gly y-glutamyl cysteine synthetase y-Glu-Cys glutathione synthetase Glutathione(GSH) Glutathione is Y-Glu VS Gly made from glu NH3 Cys, and gly OOC--CH-CH,-CH2-C-N--CH-C-N-CH2-CO0 H CH H GSH is probably important in SH maintaining proteins in their reduced Glutathione (GSH) (reduced) orms。 GSH is an important cofactor for Y-Glu-Cys-Gly glutathione peroxidase, an enzyme y-Glu-Cys-Gly containing an essential selenocysteine Glutathione(GSSG) (硒代半胱氨酸) residue in the active (oxidized) site, to remove toxic peroxides in cellsGlutathione is made from Glu, Cys, and Gly GSH is probably important in maintaining proteins in their reduced forms. •GSH is an important cofactor for glutathione peroxidase, an enzyme containing an essential selenocysteine (硒代半胱氨酸) residue in the active site, to remove toxic peroxides in cells