The Enzyme Database

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EC 1.3.1.115     
Accepted name: 3-oxocholoyl-CoA 4-desaturase
Reaction: (1) 7α,12α-dihydroxy-3-oxochol-24-oyl-CoA + NAD+ = 7α,12α-dihydroxy-3-oxochol-4-en-24-oyl-CoA + NADH + H+
(2) 7α-hydroxy-3-oxochol-24-oyl-CoA + NAD+ = 7α-hydroxy-3-oxochol-4-en-24-oyl-CoA + NADH + H+
Glossary: 7α,12α-dihydroxy-3-oxochol-24-oyl-CoA = 3-oxocholoyl-CoA
7α-hydroxy-3-oxochol-24-oyl-CoA = 3-oxochenodeoxycholoyl-CoA
Other name(s): baiCD (gene name); 3-oxo-choloyl-CoA dehydrogenase
Systematic name: 3-oxocholoyl-CoA Δ4-oxidoreductase
Comments: Contains flavin. The enzyme, characterized from the bacterium Clostridium scindens, participates in the bile acid 7α-dehydroxylation pathway. The enzyme catalyses the stereo-specific oxidation of its substrates and has no activity with the 7β anomers. cf. EC 1.3.1.116, 7β-hydroxy-3-oxochol-24-oyl-CoA 4-desaturase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Kang, D.J., Ridlon, J.M., Moore, D.R., 2nd, Barnes, S. and Hylemon, P.B. Clostridium scindens baiCD and baiH genes encode stereo-specific 7α/7β-hydroxy-3-oxo-Δ4-cholenoic acid oxidoreductases. Biochim. Biophys. Acta 1781 (2008) 16–25. [PMID: 18047844]
[EC 1.3.1.115 created 2018]
 
 


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