The Enzyme Database

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Accepted name: caffeoyl-CoA reductase
Reaction: 3-(3,4-dihydroxyphenyl)propanoyl-CoA + 2 NAD+ + 2 reduced ferredoxin [iron-sulfur] cluster = (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl-CoA + 2 NADH + 2 oxidized ferredoxin [iron-sulfur] cluster
Glossary: (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl-CoA = (2E)-3-(3,4-dihydroxyphenyl)acryloyl-CoA = trans-caffeoyl-CoA
3-(3,4-dihydroxyphenyl)propanoyl-CoA = hydrocaffeoyl-CoA
Other name(s): electron-bifurcating caffeoyl-CoA reductase; caffeoyl-CoA reductase-Etf complex; hydrocaffeoyl-CoA:NAD+,ferredoxin oxidoreductase
Systematic name: 3-(3,4-dihydroxyphenyl)propanoyl-CoA:NAD+,ferredoxin oxidoreductase
Comments: The enzyme, characterized from the bacterium Acetobacterium woodii, contains two [4Fe-4S] clusters and FAD. The enzyme couples the endergonic ferredoxin reduction with NADH as reductant to the exergonic reduction of caffeoyl-CoA with the same reductant. It uses the mechanism of electron bifurcation to overcome the steep energy barrier in ferredoxin reduction. It also reduces 4-coumaroyl-CoA and feruloyl-CoA.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Bertsch, J., Parthasarathy, A., Buckel, W. and Muller, V. An electron-bifurcating caffeyl-CoA reductase. J. Biol. Chem. 288 (2013) 11304–11311. [DOI] [PMID: 23479729]
[EC created 2015]

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