Description
Product Characteristics:
Dio3 belongs to the iodothyronine deiodinase family. It has an essential role for regulation of thyroid hormone inactivation during embryological development in that it catalyzes the inactivation of thyroid hormone by inner ring deiodination of the prohormone thyroxine (T4) and the bioactive hormone 3,3',5-triiodothyronine (T3) to inactive metabolites, 3,3',5'-triiodothyronine (RT3) and 3,3'-diiodothyronine (T2), respectively. Dio3 may play a role in preventing premature exposure of developing fetal tissues to adult levels of thyroid hormones and has been linked to the development of consumptive hypothyroidism in both infants and adults.
Synonyms: Type 3 DI, D3, 5DIII, Deiodinase iodothyronine type 3, Deiodinase iodothyronine type III, Dio 3, DIOIII, MGC124117, MGC124118, TXDI3, Type III 5' deiodinase, Type III iodothyronine deiodinase.
Target Information: The protein encoded by this intronless gene belongs to the iodothyronine deiodinase family. It catalyzes the inactivation of thyroid hormone by inner ring deiodination of the prohormone thyroxine (T4) and the bioactive hormone 3,3',5-triiodothyronine (T3) to inactive metabolites, 3,3',5'-triiodothyronine (RT3) and 3,3'-diiodothyronine (T2), respectively. This enzyme is highly expressed in the pregnant uterus, placenta, fetal and neonatal tissues, suggesting that it plays an essential role in the regulation of thyroid hormone inactivation during embryological development. This protein contains a selenocysteine (Sec) residue, which is essential for efficient enzyme activity. The selenocysteine is 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. [provided by RefSeq, Jul 2008]