The Enzyme Database

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Accepted name: 5-(hydroxymethyl)furfural oxidase
Reaction: 5-(hydroxymethyl)furfural + 3 O2 + 2 H2O = furan-2,5-dicarboxylate + 3 H2O2 (overall reaction)
(1a) 5-(hydroxymethyl)furfural + O2 = furan-2,5-dicarbaldehyde + H2O2
(1b) furan-2,5-dicarbaldehyde + H2O = 5-(dihydroxymethyl)furan-2-carbaldehyde (spontaneous)
(1c) 5-(dihydroxymethyl)furan-2-carbaldehyde + O2 = 5-formylfuran-2-carboxylate + H2O2
(1d) 5-formylfuran-2-carboxylate + H2O = 5-(dihydroxymethyl)furan-2-carboxylate (spontaneous)
(1e) 5-(dihydroxymethyl)furan-2-carboxylate + O2 = furan-2,5-dicarboxylate + H2O2
Glossary: 5-(hydroxymethyl)furfural = 5-(hydroxymethyl)furan-2-carbaldehyde
Systematic name: 5-(hydroxymethyl)furfural:oxygen oxidoreductase
Comments: The enzyme, characterized from the bacterium Methylovorus sp. strain MP688, is involved in the degradation and detoxification of 5-(hydroxymethyl)furfural. The enzyme acts only on alcohol groups and requires the spontaneous hydration of aldehyde groups for their oxidation [3]. The enzyme has a broad substrate range that overlaps with EC, aryl-alcohol oxidase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Koopman, F., Wierckx, N., de Winde, J.H. and Ruijssenaars, H.J. Identification and characterization of the furfural and 5-(hydroxymethyl)furfural degradation pathways of Cupriavidus basilensis HMF14. Proc. Natl. Acad. Sci. USA 107 (2010) 4919–4924. [DOI] [PMID: 20194784]
2.  Dijkman, W.P. and Fraaije, M.W. Discovery and characterization of a 5-hydroxymethylfurfural oxidase from Methylovorus sp. strain MP688. Appl. Environ. Microbiol. 80 (2014) 1082–1090. [DOI] [PMID: 24271187]
3.  Dijkman, W.P., Groothuis, D.E. and Fraaije, M.W. Enzyme-catalyzed oxidation of 5-hydroxymethylfurfural to furan-2,5-dicarboxylic acid. Angew. Chem. Int. Ed. Engl. 53 (2014) 6515–6518. [DOI] [PMID: 24802551]
[EC created 2014]

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