Protein: Thyroxine 5-deiodinase (EC 1.21.99.3) (5DIII) (DIOIII) (Type 3 DI) (Type III iodothyronine deiodinase) (P49897)
Organism: Rattus norvegicus (Rat)
Function: Responsible for the deiodination of T4 (3,5,3',5'-tetraiodothyronine) into RT3 (3,3',5'-triiodothyronine) and of T3 (3,5,3'-triiodothyronine) into T2 (3,3'-diiodothyronine). RT3 and T2 are inactive metabolites. May play a role in preventing premature exposure of developing fetal tissues to adult levels of thyroid hormones. Can regulate circulating fetal thyroid hormone concentrations throughout gestation. Essential role for regulation of thyroid hormone inactivation during embryological development.
Subcellular location: Cell membrane {ECO:0000250|UniProtKB:P55073}; Single-pass type II membrane protein {ECO:0000255}. Endosome membrane {ECO:0000250|UniProtKB:P55073}; Single-pass type II membrane protein {ECO:0000255}.
InterPro domains:
- IPR036249: Thioredoxin-like superfamily (homologous_superfamily) [129-198]
- IPR000643: Iodothyronine deiodinase (family) [27-299]
- IPR008261: Iodothyronine deiodinase, active site (active_site) [159-173]
- IPR027252: Iodothyronine deiodinase I/III (family) [27-304]
Sequence:
MPRQAASRLVVGEGEGPPGASGPAATMLRSLLLHSLRLCAQTASCLVLFPRFLGTAFMLWLLDFLCIRKHFLRRRHPDHPEPEVELNSEGEEMPPDDPPICVSDDNRLCTLASLKAVWHGQKLDFFKQAHEGGPAPNSEVVRPDGFQSQRILDYAQGTRPLVLNFGSCTUPPFMARMSAFQRLVTKYQRDVDFLIIYIEEAHPSDGWVTTDSPYVIPQHRSLEDRVSAARVLQQGAPGCALVLDTMANSSSSAYGAYFERLYVIQSGTIMYQGGRGPDGYQVSELRTWLERYDEQLHGTRPRRL
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016491 (oxidoreductase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0065007 (biological regulation), GO:0050896 (response to stimulus), GO:0044419 (biological process involved in interspecies interaction between organisms), GO:0009987 (cellular process), GO:0009605 (response to external stimulus), GO:0009628 (response to abiotic stimulus), GO:0065008 (regulation of biological quality), GO:0044237 (cellular metabolic process), GO:0042221 (response to chemical), GO:0044281 (small molecule metabolic process), GO:0009607 (response to biotic stimulus), GO:0006807 (nitrogen compound metabolic process), GO:0042445 (hormone metabolic process), GO:0006950 (response to stress), GO:0071704 (organic substance metabolic process), GO:0051707 (response to other organism), GO:0009266 (response to temperature stimulus), GO:1901615 (organic hydroxy compound metabolic process), GO:0042403 (thyroid hormone metabolic process), GO:0006575 (cellular modified amino acid metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:0043207 (response to external biotic stimulus), GO:0009617 (response to bacterium), GO:1901700 (response to oxygen-containing compound), GO:0006725 (cellular aromatic compound metabolic process), GO:0010817 (regulation of hormone levels), GO:0009409 (response to cold), GO:0010033 (response to organic substance), GO:0032496 (response to lipopolysaccharide), GO:0006590 (thyroid hormone generation), GO:0033993 (response to lipid), GO:0002237 (response to molecule of bacterial origin), GO:0018958 (phenol-containing compound metabolic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0042995 (cell projection), GO:0016020 (membrane), GO:0044297 (cell body), GO:0098793 (presynapse), GO:0036477 (somatodendritic compartment), GO:0005737 (cytoplasm), GO:0012505 (endomembrane system), GO:0030054 (cell junction), GO:0043025 (neuronal cell body), GO:0031090 (organelle membrane), GO:0008021 (synaptic vesicle), GO:0120025 (plasma membrane bounded cell projection), GO:0031410 (cytoplasmic vesicle), GO:0097447 (dendritic tree), GO:0043229 (intracellular organelle), GO:0045202 (synapse), GO:0043227 (membrane-bounded organelle), GO:0030133 (transport vesicle), GO:0070382 (exocytic vesicle), GO:0043005 (neuron projection), GO:0030672 (synaptic vesicle membrane), GO:0030658 (transport vesicle membrane), GO:0099503 (secretory vesicle), GO:0043231 (intracellular membrane-bounded organelle), GO:0098588 (bounding membrane of organelle), GO:0031982 (vesicle), GO:0012506 (vesicle membrane), GO:0030659 (cytoplasmic vesicle membrane), GO:0030425 (dendrite), GO:0099501 (exocytic vesicle membrane), GO:0097708 (intracellular vesicle)