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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 (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 is an antioxidant that can neutralize free radicals and detox your body. Learn more about glutathione benefits, including stronger hair and skin.
In molecular biology a selenoprotein is any protein that includes a selenocysteine (Sec, U, Se-Cys) amino acid residue. Among functionally characterized selenoproteins are five glutathione peroxidases (GPX) and three thioredoxin reductases, (TrxR/TXNRD) which both contain only one Sec. [1] Selenoprotein P is the most common selenoprotein found in the plasma.
Here, find the health benefits of glutathione, an antioxidant that helps make proteins in the body. Plus, glutathione side effects and dosages. What You Need to Know About Glutathione, a Powerful ...
Glutathione peroxidase 1 is the most abundant and is a very efficient scavenger of hydrogen peroxide, while glutathione peroxidase 4 is most active with lipid hydroperoxides. Surprisingly, glutathione peroxidase 1 is dispensable, as mice lacking this enzyme have normal lifespans, [123] but they are hypersensitive to induced oxidative stress. [124]
Among the many metabolic processes in which it participates, glutathione is required for the biosynthesis of leukotrienes and prostaglandins. 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]
In enzymology, a phospholipid-hydroperoxide glutathione peroxidase (EC 1.11.1.12) is an enzyme that catalyzes the chemical reaction 2 glutathione + a lipid hydroperoxide ⇌ {\displaystyle \rightleftharpoons } glutathione disulfide + lipid + 2 H 2 O
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