All-trans-retinol 13,14-reductase
In enzymology, an all-trans-retinol 13,14-reductase (EC 1.3.99.23) is an enzyme that catalyzes the chemical reaction
- all-trans-13,14-dihydroretinol + acceptor all-trans-retinol + reduced acceptor
| all-trans-retinol 13,14-reductase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.3.99.23 | ||||||||
| CAS number | 418767-56-3 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
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Thus, the two substrates of this enzyme are all-trans-13,14-dihydroretinol and acceptor, whereas its two products are all-trans-retinol and reduced acceptor. Under physiological conditions the reaction proceeds in the opposite direction catalyzing the saturation of the 13-14 double bond of all-trans-retinol.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with other acceptors. The systematic name of this enzyme class is all-trans-13,14-dihydroretinol:acceptor 13,14-oxidoreductase. Other names in common use include retinol saturase, RetSat, (13,14)-all-trans-retinol saturase, and all-trans-retinol:all-trans-13,14-dihydroretinol saturase.
References
- Moise AR, Kuksa V, Imanishi Y, Palczewski K (2004). "Identification of all-trans-retinol:all-trans-13,14-dihydroretinol saturase". J. Biol. Chem. 279 (48): 50230–42. doi:10.1074/jbc.M409130200. PMC 2665716. PMID 15358783.