Gene Symbol | dio2 |
Entrez Gene ID | 100036737 |
Full Name | deiodinase, iodothyronine, type 2 |
Synonyms | 5dii,DI-2,sely,txdi2 |
General protein information |
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Gene Type | protein-coding |
Organism | Xenopus tropicalis(tropical clawed frog) |
Summary | The protein encoded by this gene belongs to the iodothyronine deiodinase family. It catalyzes the conversion of prohormone thyroxine (3,5,3',5'-tetraiodothyronine, T4) to the bioactive thyroid hormone (3,5,3'-triiodothyronine, T3) by outer ring 5'-deiodination. This enzyme is thought to be responsible for the 'local' production of T3, and thus important in influencing thyroid hormone action in those peripheral tissues where it is expressed. This gene is also essential for early development in amphibians, and its expression has been observed in early-tailbud-stage embryos before the development of a functional thyroid gland. This protein is a selenoprotein containing the rare selenocysteine (Sec) amino acid at its active site, and may contain additional Sec residues. 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. [provided by RefSeq, May 2016]. |