The Enzyme Database

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Accepted name: 3-phenylpropanoate dioxygenase
Reaction: (1) 3-phenylpropanoate + NADH + H+ + O2 = 3-(cis-5,6-dihydroxycyclohexa-1,3-dien-1-yl)propanoate + NAD+
(2) (2E)-3-phenylprop-2-enoate + NADH + H+ + O2 = (2E)-3-(2,3-dihydroxyphenyl)prop-2-enoate + NAD+
For diagram of reaction, click here
Glossary: (2E)-3-phenylprop-2-enoate = trans-cinnamate
(2E)-3-(2,3-dihydroxyphenyl)prop-2-enoate = trans-2,3-dihydroxycinnamate
Other name(s): HcaA1A2CD; Hca dioxygenase; 3-phenylpropionate dioxygenase
Systematic name: 3-phenylpropanoate,NADH:oxygen oxidoreductase (2,3-hydroxylating)
Comments: This enzyme catalyses a step in the pathway of phenylpropanoid compounds degradation. It catalyses the insertion of both atoms of molecular oxygen into positions 2 and 3 of the phenyl ring of 3-phenylpropanoate or (2E)-3-phenylprop-2-enoate.
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, Gene, KEGG, MetaCyc
1.  Díaz, E., Ferrández, A. and García, J.L. Characterization of the hca cluster encoding the dioxygenolytic pathway for initial catabolism of 3-phenylpropionic acid in Escherichia coli K-12. J. Bacteriol. 180 (1998) 2915–2923. [PMID: 9603882]
2.  Burlingame, R. and Chapman, P.J. Catabolism of phenylpropionic acid and its 3-hydroxy derivative by Escherichia coli. J. Bacteriol. 155 (1983) 113–121. [PMID: 6345502]
[EC created 2005, modified 2011]

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