3alpha-hydroxy-5beta-androstane-17-one 3alpha-dehydrogenase

3-alpha-hydroxy-5-beta-androstane-17-one 3-alpha-dehydrogenase
Identifiers
EC no.1.1.1.152
CAS no.37250-77-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

In enzymology, 3alpha-hydroxy-5beta-androstane-17-one 3alpha-dehydrogenase (EC 1.1.1.152) is an enzyme that catalyzes the chemical reaction

 
 
 
H+
 
H+
 
 

The two substrates of this enzyme are etiocholanolone and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are etiocholanedione, reduced NADH, and a proton.[1][2]

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 3alpha-hydroxy-5beta-steroid:NAD+ 3-oxidoreductase. Other names in common use include etiocholanolone 3alpha-dehydrogenase, etiocholanolone 3alpha-dehydrogenase, and 3alpha-hydroxy-5beta-steroid dehydrogenase. This enzyme participates in androgen and estrogen metabolism.

References

  1. ^ Enzyme 1.1.1.152 at KEGG Pathway Database.
  2. ^ Roe CR, Kaplan NO (1969). "Purification and substrate specificities of bacterial hydroxysteroid dehydrogenases". Biochemistry. 8 (12): 5093–103. doi:10.1021/bi00840a063. PMID 5365796.