TJ. Glutathione peroxidase is an important enzyme in cellular antioxidant defense systems, detoxifying peroxides and hydroperoxides. As a component of the glutathione cycle, it protects the liver from reactive oxygen metabolites. Selenocysteine science DrinkAid Methylglyoxal Detoxification Revisited: Role of Glutathione Transferase in Model Cyanobacterium Synechocystis sp. Strain PCC 6803 mBio PPT GLUTATHIONE SYNTHESIS, EFECT OF NUTRITION ON REGULATORY CONTROL MECHANISM PowerPoint Presentation ID:6742619 Molecular Vision: De Donatis, Mol Vis 2010; 16:1025 1033. Figure 1