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Peptide Sequence: DRVKRNILAM GEKTGMTRNP HFSHDNWIPT FFSTQYFWFV LKVRWQRLED TTELGGLAPN CPVVRLSGQR CNIWEFMQGN RPLVLNFGSC T
The protein encoded by this gene is a thiol-requiring propylthiouracil-sensitive oxidoreductase. It activates thyroid hormone by converting the prohormone thyroxine (T4) by outer ring deiodination (ORD) to bioactive 3,3',5-triiodothyronine (T3). It also degrades both hormones by inner ring deiodination (IRD). Alternative splicing results in multiple transcript variants encoding different isoforms. Some, but not all, isoforms contain a selenocysteine (Sec) residue 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. Additional transcript variants have been described but are not supported by experimental evidence.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 5DI; DIOI; hDido1; iodothyronine deiodinase type 1; thyroxine 5'-deiodinase; thyroxine deiodinase; thyroxine deiodinase type I (selenoprotein); Type 1 DI; Type I iodothyronine deiodinase; Type-I 5'-deiodinase
Gene Aliases: 5DI; DIO1; ITDI1; TXDI1
UniProt ID: (Human) P49895
Entrez Gene ID: (Human) 1733
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