Description
Product Characteristics:
DIO2 belongs to the iodothyronine deiodinase family and is responsible for the deiodination of T4 (3,5,3',5'-tetraiodothyronine) into T3 (3,5,3'-triiodothyronine). It is essential for providing the brain with appropriate levels of T3 during the critical period of development. DIO2 is expressed in heart, skeletal muscle, placenta, fetal brain and several regions of the adult brain. There are two named isoforms.
Subcellular location: Cell membrane
Synonyms: 5DII, D2, Deiodinase, iodothyronine, type II, DIOII, ITDI2, SelY, Thyroxine deiodinase, type II, TXDI2, Type 2 DI, Type II 5' deiodinase, Type II iodothyronine deiodinase.
Target Information: 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]