5DIII antibody, DIOIII antibody, txdi3 antibody, dioiii antibody, XL-15 antibody, itdi3 antibody, D3 antibody, TXDI3 antibody, iodothyronine deiodinase 3 antibody, deiodinase, iodothyronine, type 3 antibody, deiodinase, iodothyronine, type III antibody, deiodinase, iodothyronine type III antibody, deiodinase, iodothyronine, type 3 L homeolog antibody, DIO3 antibody, dio3 antibody, Dio3 antibody, dio3.L antibody
Background
DIO3 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.Synonyms: 5DIII, DIOIII, ITDI3, TXDI3, Type 3 DI, Type III iodothyronine deiodinase, Type-III 5'-deiodinase