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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 1.1.1.50

Accepted Name
3-alpha-hydroxysteroid 3-dehydrogenase (Si-specific).
Alternative Name(s)
3-alpha-HSD.
3-alpha-hydroxysteroid 3-dehydrogenase (B-specific).
3-alpha-hydroxysteroid dehydrogenase (B-specific).
Hydroxyprostaglandin dehydrogenase.
Reaction catalysed
A 3-alpha-hydroxysteroid + NAD(P)(+) <=> a 3-oxosteroid + NAD(P)H
Comment(s)
  • The enzyme acts on androsterone and other 3-alpha-hydroxysteroids and on 9-, 11- and 15-hydroxyprostaglandin.
  • Si-specific with respect to NAD(+) or NADP(+) (cf. EC 1.1.1.213).
Cross-references
PROSITEPDOC00061
BRENDA1.1.1.50
EC2PDB1.1.1.50
ExplorEnz1.1.1.50
PRIAM enzyme-specific profiles1.1.1.50
KEGG Ligand Database for Enzyme Nomenclature1.1.1.50
IUBMB Enzyme Nomenclature1.1.1.50
IntEnz1.1.1.50
MEDLINEFind literature relating to 1.1.1.50
MetaCyc1.1.1.50
UniProtKB/Swiss-Prot
P80702, DIDH_COMTE;  P80701, DIDH_PSESP;  P23457, DIDH_RAT;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.1.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.1.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.-.-.-