The Enzyme Database

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Accepted name: bile-acid 7α-dehydratase
Reaction: 7α,12α-dihydroxy-3-oxochol-4-en-24-oyl-CoA = 12α-hydroxy-3-oxochola-4,6-dien-24-oyl-CoA + H2O
For diagram of reaction, click here
Other name(s): baiE (gene name); 7α,12α-dihydroxy-3-oxochol-4-enoate hydro-lyase; 7α,12α-dihydroxy-3-oxochol-4-enoate hydro-lyase (12α-hydroxy-3-oxochola-4,6-dienoate-forming); BA7 α dehydratase
Systematic name: 7α,12α-dihydroxy-3-oxochol-4-enoyl-CoA hydro-lyase (12α-hydroxy-3-oxochola-4,6-dienoyl-CoA-forming)
Comments: This enzyme, characterized from the gut bacterium Clostridium scindens (previously known as Eubacterium sp. strain VPI 12708), participates in the 7-dehydroxylation process associated with bile acid degradation.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Mallonee, D.H., White, W.B. and Hylemon, P.B. Cloning and sequencing of a bile acid-inducible operon from Eubacterium sp. strain VPI 12708. J. Bacteriol. 172 (1990) 7011–7019. [DOI] [PMID: 2254270]
2.  Dawson, J.A., Mallonee, D.H., Björkhem, I. and Hylemon, P.B. Expression and characterization of a C24 bile acid 7α-dehydratase from Eubacterium sp. strain VPI 12708 in Escherichia coli. J. Lipid Res. 37 (1996) 1258–1267. [PMID: 8808760]
3.  Bhowmik, S., Chiu, H.P., Jones, D.H., Chiu, H.J., Miller, M.D., Xu, Q., Farr, C.L., Ridlon, J.M., Wells, J.E., Elsliger, M.A., Wilson, I.A., Hylemon, P.B. and Lesley, S.A. Structure and functional characterization of a bile acid 7α dehydratase BaiE in secondary bile acid synthesis. Proteins 84 (2016) 316–331. [DOI] [PMID: 26650892]
[EC created 2005, modified 2016]

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