Glutathione Peroxidase 5: Proteins and Enzymes

Glutathione peroxidase (GPX)/glutathione reductase is part of the hydrogen peroxide scavenging system found within the epididymis in the mammalian male reproductive tract. GPX5 expression is epididymis-specific and the transcript is unique from other GPXs because it contains a deletion resulting in an mRNA that does not contain a selenocysteine (UGA) codon (an unusual amino acid present in other GPXs). This deletion also renders the mRNA incapable of encoding an active GPX isoenzyme. For this ...