The Enzyme Database

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Accepted name: resorcinol 4-hydroxylase (FADH2)
Reaction: resorcinol + FADH2 + O2 = hydroxyquinol + FAD + H2O
Glossary: resorcinol = benzene-1,3-diol
hydroxyquinol = benzene-1,2,4-triol
Other name(s): graA (gene name)
Systematic name: resorcinol,FADH2:oxygen oxidoreductase (4-hydroxylating)
Comments: The enzyme, characterized from the bacterium Rhizobium sp. strain MTP-10005, uses FADH2 as a substrate rather than a cofactor. FADH2 is provided by a dedicated EC, flavin reductase (NADH). The enzyme participates in the degradation of γ-resorcylate and resorcinol. cf. EC, resorcinol 4-hydroxylase (NADH), and EC, resorcinol 4-hydroxylase (NADPH).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Ohta, Y. and Ribbons, D.W. Bacterial metabolism of resorcinylic compounds: purification and properties of orcinol hydroxylase and resorcinol hydroxylase from Pseudomonas putida ORC. Eur. J. Biochem. 61 (1976) 259–269. [DOI] [PMID: 1280]
2.  Yoshida, M., Oikawa, T., Obata, H., Abe, K., Mihara, H. and Esaki, N. Biochemical and genetic analysis of the γ-resorcylate (2,6-dihydroxybenzoate) catabolic pathway in Rhizobium sp. strain MTP-10005: identification and functional analysis of its gene cluster. J. Bacteriol. 189 (2007) 1573–1581. [DOI] [PMID: 17158677]
[EC created 2016]

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