Aliases for GPX3 Gene
External Ids for GPX3 Gene
Previous GeneCards Identifiers for GPX3 Gene
The protein encoded by this gene belongs to the glutathione peroxidase family, members of which catalyze the reduction of organic hydroperoxides and hydrogen peroxide (H2O2) by glutathione, and thereby protect cells against oxidative damage. Several isozymes of this gene family exist in vertebrates, which vary in cellular location and substrate specificity. This isozyme is secreted, and is abundantly found in plasma. Downregulation of expression of this gene by promoter hypermethylation has been observed in a wide spectrum of human malignancies, including thyroid cancer, hepatocellular carcinoma and chronic myeloid leukemia. This isozyme is also a selenoprotein, containing the rare amino acid selenocysteine (Sec) at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2016]
GeneCards Summary for GPX3 Gene
GPX3 (Glutathione Peroxidase 3) is a Protein Coding gene. Diseases associated with GPX3 include Glutathione Peroxidase Deficiency and Thyroid Cancer. Among its related pathways are Cytochrome P450 - arranged by substrate type and Glutathione metabolism. Gene Ontology (GO) annotations related to this gene include transcription factor binding and selenium binding. An important paralog of this gene is GPX5.
UniProtKB/Swiss-Prot for GPX3 Gene
Protects cells and enzymes from oxidative damage, by catalyzing the reduction of hydrogen peroxide, lipid peroxides and organic hydroperoxide, by glutathione.