The Enzyme Database

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Accepted name: 4-hydroxymandelate oxidase
Reaction: (S)-4-hydroxymandelate + O2 = 2-(4-hydroxyphenyl)-2-oxoacetate + H2O2
Glossary: (S)-4-hydroxymandelate = (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate
2-(4-hydroxyphenyl)-2-oxoacetate = 4-hydroxyphenylglyoxylate = (4-hydroxyphenyl)(oxo)acetate
L-(4-hydroxyphenyl)glycine = (S)-4-hydroxyphenylglycine
L-(3,5-dihydroxyphenyl)glycine = (S)-3,5-dihydroxyphenylglycine
Other name(s): 4HmO; HmO
Systematic name: (S)-4-hydroxymandelate:oxygen 1-oxidoreductase
Comments: A flavoprotein (FMN). The enzyme from the bacterium Amycolatopsis orientalis is involved in the biosynthesis of L-(4-hydroxyphenyl)glycine and L-(3,5-dihydroxyphenyl)glycine, two non-proteinogenic amino acids occurring in the vancomycin group of antibiotics.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Hubbard, B.K., Thomas, M.G. and Walsh, C.T. Biosynthesis of L-p-hydroxyphenylglycine, a non-proteinogenic amino acid constituent of peptide antibiotics. Chem. Biol. 7 (2000) 931–942. [PMID: 11137816]
2.  Li, T.L., Choroba, O.W., Charles, E.H., Sandercock, A.M., Williams, D.H. and Spencer, J.B. Characterisation of a hydroxymandelate oxidase involved in the biosynthesis of two unusual amino acids occurring in the vancomycin group of antibiotics. Chem. Commun. (Camb.) (2001) 1752–1753. [PMID: 12240298]
[EC created 2014]

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