The Enzyme Database

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Accepted name: 4-hydroxybenzaldehyde dehydrogenase (NAD+)
Reaction: 4-hydroxybenzaldehyde + NAD+ + H2O = 4-hydroxybenzoate + NADH + 2 H+
Other name(s): p-hydroxybenzaldehyde dehydrogenase (ambiguous); 4-hydroxybenzaldehyde dehydrogenase (ambiguous)
Systematic name: 4-hydroxybenzaldehyde:NAD+ oxidoreductase
Comments: The bacterial enzyme (characterized from an unidentified denitrifying bacterium) is involved in an anaerobic toluene degradation pathway. The plant enzyme is involved in formation of 4-hydroxybenzoate, a cell wall-bound phenolic acid that plays a major role in plant defense against pathogens. cf. EC, 4-hydroxybenzaldehyde dehydrogenase (NADP+).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, UM-BBD, CAS registry number: 61229-72-9
1.  Bossert, I.D., Whited, G., Gibson, D.T. and Young, L.Y. Anaerobic oxidation of p-cresol mediated by a partially purified methylhydroxylase from a denitrifying bacterium. J. Bacteriol. 171 (1989) 2956–2962. [PMID: 2722739]
2.  Sircar, D. and Mitra, A. Evidence for p-hydroxybenzoate formation involving enzymatic phenylpropanoid side-chain cleavage in hairy roots of Daucus carota. J. Plant Physiol. 165 (2008) 407–414. [PMID: 17658659]
[EC created 2000, modified 2015]

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