3beta(or 20alpha)-hydroxysteroid dehydrogenase
Appearance
3β(or 20α)-hydroxysteroid dehydrogenase | |||||||||
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Identifiers | |||||||||
EC no. | 1.1.1.210 | ||||||||
CAS no. | 82869-26-9 | ||||||||
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 3-β(or 20-α)-hydroxysteroid dehydrogenase (EC 1.1.1.210) is an enzyme that catalyzes the chemical reaction
- 5α-androstan-3β,17β-diol + NADP+ 17β-hydroxy-5α-androstan-3-one + NADPH + H+
This enzyme possesses the combined activities of the 3-β-hydroxysteroid dehydrogenase/Δ-5-4 isomerase and 20-α-hydroxysteroid dehydrogenase enzymes.[1]
References
[edit]- ^ Sharaf MA, Sweet F (September 1982). "Dual activity at an enzyme active site: 3 beta,20 alpha-hydroxysteroid oxidoreductase from fetal blood". Biochemistry. 21 (19): 4615–20. doi:10.1021/bi00262a016. PMID 6958329.