GLUTATHIONE PEROXIDASE AND GLUTATHIONE REDUCTASE
Glutathione (g-glutamylcysteinylglycine) is one of the principal endogenous antioxidants
In reactions that are catalyzed by glutathione peroxidases, the reactive sulfhydryl groups of glutathione (GSH; reduced glutathione ) reduce H2O2 to H2O and lipid peroxides to nontoxic compounds yielding glutathione disulfide (GSSG; oxidized glutathione)