21-hydroxysteroid dehydrogenase (NADP) | |||||||||
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Identifiers | |||||||||
EC no. | 1.1.1.151 | ||||||||
CAS no. | 37250-76-3 | ||||||||
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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In enzymology, a 21-hydroxysteroid dehydrogenase (NADP) (EC 1.1.1.151) is an enzyme that catalyzes the chemical reaction
- pregnan-21-ol + NADP pregnan-21-al + NADPH + H
Thus, the two substrates of this enzyme are pregnan-21-ol and NADP, whereas its 3 products are pregnan-21-al, NADPH, 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:NADP 21-oxidoreductase. Other names in common use include 21-hydroxy steroid dehydrogenase, 21-hydroxy steroid (nicotinamide adenine dinucleotide phosphate), dehydrogenase, 21-hydroxy steroid dehydrogenase (nicotinamide adenine dinucleotide, phosphate), NADP-21-hydroxysteroid dehydrogenase, and 21-hydroxysteroid dehydrogenase (NADP).
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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