Escherichia coli K-12 substr. MG1655 Reaction:

Superclasses: Reactions Classified By Conversion TypeSimple ReactionsChemical Reactions
Reactions Classified By SubstrateSmall-Molecule Reactions

EC Number:

Enzymes and Genes:
FadJ component of anaerobic fatty acid oxidation complexInferred by computational analysisInferred from experiment: fadJ
fatty acid oxidation complex, α componentInferred from experiment: fadB

In Pathway: fatty acid β-oxidation I

The direction shown, i.e. which substrates are on the left and right sides, is in accordance with the direction in which it was curated.

Most BioCyc compounds have been protonated to a reference pH value of 7.3. Please see the PGDB Concepts Guide for more information.

Mass balance status: Balanced.

Instance reaction:
3-hydroxy-5-cis-tetradecenoyl-CoA + NAD+ = 3-keto-5-cis-tetradecenoyl-CoA + NADH + H+ (

Enzyme Commission Primary Name: 3-hydroxyacyl-CoA dehydrogenase

Enzyme Commission Synonyms: β-hydroxyacyl dehydrogenase, β-keto-reductase, 3-keto reductase, 3-hydroxyacyl coenzyme A dehydrogenase, β-hydroxyacyl-coenzyme A synthetase, β-hydroxyacylcoenzyme A dehydrogenase, β-hydroxybutyrylcoenzyme A dehydrogenase, 3-hydroxyacetyl-coenzyme A dehydrogenase, L-3-hydroxyacyl coenzyme A dehydrogenase, L-3-hydroxyacyl CoA dehydrogenase, β-hydroxyacyl CoA dehydrogenase, 3β-hydroxyacyl coenzyme A dehydrogenase, 3-hydroxybutyryl-CoA dehydrogenase, β-ketoacyl-CoA reductase, β-hydroxy acid dehydrogenase, 3-L-hydroxyacyl-CoA dehydrogenase, 3-hydroxyisobutyryl-CoA dehydrogenase, 1-specific DPN-linked β-hydroxybutyric dehydrogenase

A reaction in the β-oxidation fatty acid degradation.

Enzyme Commission Summary:
Also oxidizes S-3-hydroxyacyl-N-acylthioethanolamine and S-3-hydroxyacyl-hydrolipoate. Some enzymes act, more slowly, with NADP+. Broad specificity to acyl chain-length (cf. EC [long-chain-3-hydroxyacyl-CoA dehydrogenase]).

Citations: [Lehninger, Stern57, Wakil54]

Gene-Reaction Schematic

Gene-Reaction Schematic

Instance reaction of [a cis-3-enoyl-CoA ↔ a trans-2-enoyl-CoA] (
i2: 3-cis-dodecenoyl-CoA = trans-dodec-2-enoyl-CoA (

Instance reaction of [a (3S)-3-hydroxyacyl-CoA + NAD+ → a 3-oxoacyl-CoA + NADH + H+] (
i1: 3-hydroxy-5-cis-tetradecenoyl-CoA + NAD+ = 3-keto-5-cis-tetradecenoyl-CoA + NADH + H+ (

Relationship Links: BRENDA:EC:, ENZYME:EC:, IUBMB-ExplorEnz:EC:


Lehninger: Lehninger AL, Greville GD "The enzymic oxidation of alpha- and 2-beta-hydroxybutyrate." Biochim Biophys Acta 12(1-2);188-202. PMID: 13115428

Stern57: Stern JR (1957). "Crystalline beta-hydroxybutyryl dehydrogenase from pig heart." Biochim Biophys Acta 26(2);448-9. PMID: 13499396

Wakil54: Wakil SJ, Green DE, Mii S, Mahler HR (1954). "Studies on the fatty acid oxidizing system of animal tissues. VI. beta-Hydroxyacyl coenzyme A dehydrogenase." J Biol Chem 207(2);631-8. PMID: 13163047

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Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by Pathway Tools version 19.5 (software by SRI International) on Sun Nov 29, 2015, biocyc14.