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Glutathione peroxidase (GPx) (EC 1.11.1.9) is the general name of an enzyme family with peroxidase activity whose main biological role is to protect the organism from oxidative damage. [2] The biochemical function of glutathione peroxidase is to reduce lipid hydroperoxides to their corresponding alcohols and to reduce free hydrogen peroxide to ...
Glutathione peroxidase 1, also known as GPx1, is an enzyme that in humans is encoded by the GPX1 gene on chromosome 3. [5] This gene encodes a member of the glutathione peroxidase family. Glutathione peroxidase functions in the detoxification of hydrogen peroxide , and is one of the most important antioxidant enzymes in humans.
Glutathione peroxidase 4, also known as GPX4, is an enzyme that in humans is encoded by the GPX4 gene. [5] GPX4 is a phospholipid hydroperoxidase that protects cells against membrane lipid peroxidation .
Glutathione peroxidase 3 (GPx-3), also known as plasma glutathione peroxidase (GPx-P) or extracellular glutathione peroxidase is an enzyme that in humans is encoded by the GPX3 gene. [5] [6] [7] GPx-3 belongs to the glutathione peroxidase family, which functions in the detoxification of
Glutathione is also linked to the newly popular NAC, or N-acetyl cysteine supplements. As of late, NAC supplements have become the elixir du jour. Of course, no one supplement is a cure-all, but ...
It plays a role in the storage of cysteine. Glutathione enhances the function of citrulline as part of the nitric oxide cycle. [24] It is a cofactor and acts on glutathione peroxidase. [25] Glutathione is used to produce S-sulfanylglutathione, which is part of hydrogen sulfide metabolism. [26]
Plus, glutathione side effects and dosages. Here, find the health benefits of glutathione, an antioxidant that helps make proteins in the body. Plus, glutathione side effects and dosages.
Glutathione peroxidase 2 is an enzyme that in humans is encoded by the GPX2 gene. [5] [6] [7]This gene is a member of the glutathione peroxidase family encoding a selenium-dependent glutathione peroxidase that is one of two isoenzymes responsible for the majority of the glutathione-dependent hydrogen peroxide-reducing activity in the epithelium of the gastrointestinal tract.