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・ Hydroxyphenylpyruvate synthase
・ Hydroxyphytanate oxidase
・ Hydroxyprogesterone acetate
・ Hydroxyprogesterone caproate
・ Hydroxyprogesterone heptanoate
・ Hydroxyproline
・ Hydroxypropanal
・ Hydroxypropanoic acid
・ Hydroxypropyl cellulose
・ Hydroxypropyl distarch phosphate
・ Hydroxypyruvate decarboxylase
・ Hydroxypyruvate isomerase
・ Hydroxypyruvate reductase
・ Hydroxypyruvic acid
・ Hydroxyquinol
Hydroxyquinol 1,2-dioxygenase
・ Hydroxyquinone
・ Hydroxystenozole
・ Hydroxysteroid
・ Hydroxysteroid dehydrogenase
・ Hydroxystilbamidine
・ Hydroxysultaine
・ Hydroxytertatolol
・ Hydroxytropacocaine
・ Hydroxytyrosol
・ Hydroxyuracil
・ Hydroxyurea dermopathy
・ Hydroxyzine
・ Hydroxyzine/reference table
・ Hydrozagadka


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Hydroxyquinol 1,2-dioxygenase : ウィキペディア英語版
Hydroxyquinol 1,2-dioxygenase

In enzymology, a hydroxyquinol 1,2-dioxygenase () is an enzyme that catalyzes the chemical reaction
:benzene-1,2,4-triol + O2 \rightleftharpoons 3-hydroxy-cis,cis-muconate
Thus, the two substrates of this enzyme are benzene-1,2,4-triol (hydroxyquinol) and O2, whereas its product is 3-hydroxy-cis,cis-muconate.
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). The oxygen incorporated need not be derived from O2. The systematic name of this enzyme class is benzene-1,2,4-triol:oxygen 1,2-oxidoreductase (decyclizing). This enzyme is also called hydroxyquinol dioxygenase. This enzyme participates in benzoate degradation via hydroxylation and 1,4-dichlorobenzene degradation. It employs one cofactor, iron.
== Structural studies ==

, only one structure has been solved for this class of enzymes, with the PDB accession code .

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