 Gentisate 1,2-dioxygenase

In enzymology, a gentisate 1,2-dioxygenase () is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are 2,5-dihydroxybenzoate and O2, whereas its product is 3-maleylpyruvate.This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O2 as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases).