Hydroquinone 1,2-dioxygenase

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


 * benzene-1,4-diol + O2 $$\rightleftharpoons$$ (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.