Bulk Mail Clerk Career. *A job as a Bulk Mail Clerk falls under the broader career category of Postal Service Clerks. The information on this page will generally apply to all careers in this category. We are still seeking more specific information about this career from experts in this field. If you can provide us with more information, .
Glutathione is a tripeptide formed by a peptide linkage between the amine group of cysteine linked to glycine and the carboxyl group of the glutamate side-chain. It is an abundant cellular reducing agent, whose major biological function is mitigating oxidative damage to biological macromolecules.
Glutathione serves as a substrate for glutathione peroxidase, an enzyme that functions to remove hydrogen peroxide. The reduced form of glutathione (GSH) is acted on by glutathione peroxidase to produce the oxidized form of glutathione, GSSG. The mineral selenium is an essential component of glutathione peroxidase. Glutathione peroxidase and other antioxidant enzymes (eg, superoxide dismutases, catalase, and glutathione reductase) function to reduce lipid peroxidation. For a full description of natural antioxidants and their actions, see Maxwell (5).