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, EXPASY, KEGG, MetaCyc, UM-BBD
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]
Accepted name: phenacrylate decarboxylase
Reaction: (1) 4-coumarate = 4-vinylphenol + CO2
(2) trans-cinnamate = styrene + CO2
(3) ferulate = 4-vinylguaiacol + CO2
Glossary: 4-coumarate = 3-(4-hydroxyphenyl)prop-2-enoate
trans-cinnamate = (2E)-3-phenylprop-2-enoate
ferulate = 4-hydroxy-3-methoxycinnamate
Other name(s): FDC1 (gene name); ferulic acid decarboxylase
Systematic name: 3-phenylprop-2-enoate carboxy-lyase
Comments: The enzyme, found in fungi, catalyses the decarboxylation of phenacrylic acids present in plant cell walls. It requires a prenylated flavin cofactor that is produced by EC, flavin prenyltransferase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Mukai, N., Masaki, K., Fujii, T., Kawamukai, M. and Iefuji, H. PAD1 and FDC1 are essential for the decarboxylation of phenylacrylic acids in Saccharomyces cerevisiae. J. Biosci. Bioeng. 109 (2010) 564–569. [DOI] [PMID: 20471595]
2.  Bhuiya, M.W., Lee, S.G., Jez, J.M. and Yu, O. Structure and mechanism of ferulic acid decarboxylase (FDC1) from Saccharomyces cerevisiae. Appl. Environ. Microbiol. 81 (2015) 4216–4223. [DOI] [PMID: 25862228]
3.  Payne, K.A., White, M.D., Fisher, K., Khara, B., Bailey, S.S., Parker, D., Rattray, N.J., Trivedi, D.K., Goodacre, R., Beveridge, R., Barran, P., Rigby, S.E., Scrutton, N.S., Hay, S. and Leys, D. New cofactor supports α,β-unsaturated acid decarboxylation via 1,3-dipolar cycloaddition. Nature 522 (2015) 497–501. [DOI] [PMID: 26083754]
[EC created 2015]

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