21-hydroxysteroid dehydrogenase (NAD+)
In enzymology, a 21-hydroxysteroid dehydrogenase (NAD+) (EC 1.1.1.150) is an enzyme that catalyzes the chemical reaction
- pregnan-21-ol + NAD+ pregnan-21-al + NADH + H+
| 21-hydroxysteroid dehydrogenase (NAD+) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.1.1.150 | ||||||||
| CAS number | 37250-75-2 | ||||||||
| 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 | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are pregnan-21-ol and NAD+, whereas its 3 products are pregnan-21-al, NADH, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 21-hydroxysteroid:NAD+ 21-oxidoreductase. This enzyme is also called 21-hydroxysteroid dehydrogenase (NAD+).
References
- Monder C, White A (1965). "The 21-hydroxysteroid dehydrogenases of liver. A nicotinamide adenine dinucleotide phosphate dehydrogenase and two nicotinamide adenine dinucleotide dehydrogenases". J. Biol. Chem. 240: 71–7. PMID 14253469.
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