The Enzyme Database

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Accepted name: 4-hydroxyphenylacetate 1-monooxygenase
Reaction: 4-hydroxyphenylacetate + NAD(P)H + H+ + O2 = homogentisate + NAD(P)+ + H2O
For diagram of the homogentisate pathways, click here
Other name(s): 4-hydroxyphenylacetate 1-hydroxylase; 4-hydroxyphenylacetic 1-hydroxylase; 4-HPA 1-hydroxylase
Systematic name: 4-hydroxyphenylacetate,NAD(P)H:oxygen oxidoreductase (1-hydroxylating)
Comments: A flavoprotein (FAD). Also acts on 4-hydroxyhydratropate (forming 2-methylhomogentisate) and on 4-hydroxyphenoxyacetate (forming hydroquinone and glycolate).
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, Gene, KEGG, MetaCyc, CAS registry number: 55326-44-8
1.  Hareland, W.A., Crawford, R.L., Chapman, P.J. and Dagley, S. Metabolic function and properties of 4-hydroxyphenylacetic acid 1-hydroxylase from Pseudomonas acidovorans. J. Bacteriol. 121 (1975) 272–285. [PMID: 234937]
[EC created 1976]

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