Hydroquinone 1,2-dioxygenase

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Hydroquinone 1,2-dioxygenase
EC number1.13.11.66
IntEnzIntEnz view
ExPASyNiceZyme view
MetaCycmetabolic pathway
PDB structuresRCSB PDB PDBe PDBsum

Hydroquinone 1,2-dioxygenase (EC, hydroquinone dioxygenase) is an enzyme with systematic name benzene-1,4-diol:oxygen 1,2-oxidoreductase (decyclizing).[1][2][3] This enzyme catalyses the following chemical reaction

benzene-1,4-diol + O2 (2E,4Z)-4-hydroxy-6-oxohexa-2,4-dienoate

The enzyme is an extradiol-type dioxygenase. It belongs to the nonheme-iron(II)-dependent dioxygenase family.


  1. ^ Miyauchi, K.; Adachi, Y.; Nagata, Y.; Takagi, M. (1999). "Cloning and sequencing of a novel meta-cleavage dioxygenase gene whose product is involved in degradation of γ-hexachlorocyclohexane in Sphingomonas paucimobilis". J. Bacteriol. 181 (21): 6712–6719. PMC 94136. PMID 10542173.
  2. ^ Moonen, M.J.; Synowsky, S.A.; van den Berg, W.A.; Westphal, A.H.; Heck, A.J.; van den Heuvel, R.H.; Fraaije, M.W.; van Berkel, W.J. (2008). "Hydroquinone dioxygenase from pseudomonas fluorescens ACB: a novel member of the family of nonheme-iron(II)-dependent dioxygenases". J. Bacteriol. 190: 5199–5209. doi:10.1128/JB.01945-07. PMC 2493252. PMID 18502867.
  3. ^ Shen, W.; Liu, W.; Zhang, J.; Tao, J.; Deng, H.; Cao, H.; Cui, Z. (2010). "Cloning and characterization of a gene cluster involved in the catabolism of p-nitrophenol from Pseudomonas putida DLL-E4". Bioresour. Technol. 101: 7516–7522. doi:10.1016/j.biortech.2010.04.052. PMID 20466541.

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