Aliases for TXNRD2 Gene
External Ids for TXNRD2 Gene
Previous GeneCards Identifiers for TXNRD2 Gene
The protein encoded by this gene belongs to the pyridine nucleotide-disulfide oxidoreductase family, and is a member of the thioredoxin (Trx) system. Three thioredoxin reductase (TrxR) isozymes are found in mammals. TrxRs are selenocysteine-containing flavoenzymes, which reduce thioredoxins, as well as other substrates, and play a key role in redox homoeostasis. This gene encodes a mitochondrial form important for scavenging reactive oxygen species in mitochondria. It functions as a homodimer containing FAD, and selenocysteine (Sec) at the active site. Sec is encoded by UGA codon that normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, the Sec insertion sequence (SECIS) element, which is necessary for the recognition of UGA as a Sec codon rather than as a stop signal. Alternatively spliced transcript variants encoding different isoforms, including a few localized in the cytosol and some lacking the C-terminal Sec residue, have been found for this gene. [provided by RefSeq, Jun 2017]
GeneCards Summary for TXNRD2 Gene
TXNRD2 (Thioredoxin Reductase 2) is a Protein Coding gene. Diseases associated with TXNRD2 include Glucocorticoid Deficiency 5 and Familial Glucocorticoid Deficiency. Among its related pathways are Detoxification of Reactive Oxygen Species and Selenium Metabolism and Selenoproteins. Gene Ontology (GO) annotations related to this gene include oxidoreductase activity and NADP binding. An important paralog of this gene is TXNRD1.
UniProtKB/Swiss-Prot for TXNRD2 Gene
Maintains thioredoxin in a reduced state. Implicated in the defenses against oxidative stress. May play a role in redox-regulated cell signaling.