IUBMB Enzyme Nomenclature


Accepted name: 3-oxo-5β-steroid 4-dehydrogenase

Reaction: a 3-oxo-5β-steroid + acceptor = a 3-oxo-Δ4-steroid + reduced acceptor

Other name(s): 3-oxo-5β-steroid:(acceptor) Δ4-oxidoreductase

Systematic name: 3-oxo-5β-steroid:acceptor Δ4-oxidoreductase

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9067-97-4


1. Davidson, S.J. and Talalay, P. Purification and mechanism of action of a steroid δ4-5β-dehydrogenase. J. Biol. Chem. 241 (1966) 906-915. [PMID: 5907467]

[EC created 1972]

Return to EC 1.3.99 home page
Return to EC 1.3 home page
Return to EC 1 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page