Aliases for DIO2 Gene
External Ids for DIO2 Gene
Previous GeneCards Identifiers for DIO2 Gene
The protein encoded by this gene belongs to the iodothyronine deiodinase family. It activates thyroid hormone by converting the prohormone thyroxine (T4) by outer ring deiodination (ORD) to bioactive 3,3',5-triiodothyronine (T3). It is highly expressed in the thyroid, and may contribute significantly to the relative increase in thyroidal T3 production in patients with Graves disease and thyroid adenomas. This protein contains selenocysteine (Sec) residues encoded by the UGA codon, which normally signals translation termination. The 3' UTR of Sec-containing genes have a common stem-loop structure, the sec insertion sequence (SECIS), which is necessary for the recognition of UGA as a Sec codon rather than as a stop signal. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
GeneCards Summary for DIO2 Gene
DIO2 (Deiodinase, Iodothyronine, Type II) is a Protein Coding gene. Diseases associated with DIO2 include graves' disease and euthyroid sick syndrome. Among its related pathways are Thyroid hormone signaling pathway and Amine-derived hormones. GO annotations related to this gene include oxidoreductase activity and antioxidant activity. An important paralog of this gene is DIO3.
UniProtKB/Swiss-Prot for DIO2 Gene
Responsible for the deiodination of T4 (3,5,3,5-tetraiodothyronine) into T3 (3,5,3-triiodothyronine). Essential for providing the brain with appropriate levels of T3 during the critical period of development.