GSTA2

glutathione S-transferase alpha 2

Summary

Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. These enzymes function in the detoxification of electrophilic compounds, including carcinogens, therapeutic drugs, environmental toxins and products of oxidative stress, by conjugation with glutathione. The genes encoding these enzymes are known to be highly polymorphic. These genetic variations can change an individual's susceptibility to carcinogens and toxins as well as affect the toxicity and efficacy of some drugs. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-tranferase belonging to the alpha class. The alpha class genes, located in a cluster mapped to chromosome 6, are the most abundantly expressed glutathione S-transferases in liver. In addition to metabolizing bilirubin and certain anti-cancer drugs in the liver, the alpha class of these enzymes exhibit glutathione peroxidase activity thereby protecting the cells from reactive oxygen species and the products of peroxidation. [provided by RefSeq, Jul 2008]

Known Variants28 total

rsidPosition (GRCh37)AllelesClassClinVar
rs65776:52,615,415T/Gmissense variant—
rs7720761986:52,616,390G/T—uncertain significance
rs25326736556:52,616,472C/A—uncertain significance
rs1995640336:52,616,476C/A—uncertain significance
rs25326737556:52,616,506C/A—uncertain significance
rs1429839626:52,617,667G/C—likely benign
rs14753655236:52,617,678T/C—uncertain significance
rs7527735046:52,617,683G/A—uncertain significance
rs7710852666:52,617,693G/T—likely benign
rs21803146:52,617,731C/Gmissense variant—
rs22349516:52,617,738G/Amissense variant—
rs17627726356:52,617,767G/A—uncertain significance
rs7526798736:52,617,779A/G—likely benign
rs7779240516:52,617,786T/A—uncertain significance
rs7753882026:52,619,768T/C—uncertain significance
rs14389042576:52,619,844T/C—uncertain significance
rs27490056:52,621,433T/C——
rs7470604326:52,622,690A/G—likely benign
rs22540506:52,622,814C/Tregulatory region variant—
rs26086256:52,623,095C/A——
rs26086276:52,625,041C/Tintron variant—
rs27490136:52,627,165A/T——
rs27490146:52,627,322G/Adownstream gene variant—
rs20707746:52,628,035C/Tdownstream gene variant—
rs47153166:52,628,998C/Tdownstream gene variant—
rs47153176:52,629,010T/Gdownstream gene variant—
rs64588676:52,629,980A/C——
rs64588686:52,630,153C/Tcoding sequence variant—

Gene information from NCBI Gene. Variant classifications from ClinVar.