IUBMB Enzyme Nomenclature


Accepted name: phenylacetyl-CoA 1,2-epoxidase

Reaction: phenylacetyl-CoA + NADPH + H+ + O2 = 2-(1,2-epoxy-1,2-dihydrophenyl)acetyl-CoA + NADP+ + H2O

For diagram of reaction click here.

Glossary: 2-(1,2-epoxy-1,2-dihydrophenyl)acetyl-CoA = 2-{7-oxabicyclo[4.1.0]hepta-2,4-dien-1-yl}acetyl-CoA

Other name(s): ring 1,2-phenylacetyl-CoA epoxidase; phenylacetyl-CoA monooxygenase; PaaAC; PaaABC(D)E

Systematic name: phenylacetyl-CoA:oxygen oxidoreductase (1,2-epoxidizing)

Comments: Part of the aerobic pathway of phenylacetate catabolism in Escherichia coli and Pseudomonas putida.

Links to other databases: BRENDA, EAWAG-BBD, EXPASY, KEGG, Metacyc, PDB, CAS registry number:


1. Teufel, R., Mascaraque, V., Ismail, W., Voss, M., Perera, J., Eisenreich, W., Haehnel, W. and Fuchs, G. Bacterial phenylalanine and phenylacetate catabolic pathway revealed. Proc. Natl. Acad. Sci. USA 107 (2010) 14390-14395. [PMID: 20660314]

2. Grishin, A.M., Ajamian, E., Zhang, L. and Cygler, M. Crystallization and preliminary X-ray analysis of PaaAC, the main component of the hydroxylase of the Escherichia coli phenylacetyl-coenzyme A oxygenase complex. Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun. 66 (2010) 1045-1049. [PMID: 20823522]

3. Grishin, A.M., Ajamian, E., Tao, L., Zhang, L., Menard, R. and Cygler, M. Structural and functional studies of the Escherichia coli phenylacetyl-CoA monooxygenase complex. J. Biol. Chem. 286 (2011) 10735-10743. [PMID: 21247899]

[EC created 2012]

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