Canadian Medical Guide > Chemicals and Drugs > Enzymes and Coenzymes > Enzymes > Oxidoreductases > Oxygenases Terms and Definitions

Oxygenases

Medical Definition:
CAS Number:	EC 1.13.

Oxygenases Categories.

	4-Hydroxyphenylpyruvate Dioxygenase - An enzyme that catalyzes the conversion of 4-hydroxyphenylpyruvate plus oxygen to homogentisic acid and carbon dioxide. EC 1.13.11.27.
	7-Alkoxycoumarin O-Dealkylase - A drug-metabolizing enzyme found in the hepatic, placental and intestinal microsomes that metabolizes 7-alkoxycoumarin to 7-hydroxycoumarin. The enzyme is cytochrome P-450- dependent.
	Lipoxygenase - An enzyme of the oxidoreductase class that catalyzes reactions between linoleate and other fatty acids and oxygen to form hydroperoxy-fatty acid derivatives. Related enzymes in this class include the ARACHIDONATE LIPOXYGENASES; ARACHIDONATE 5-LIPOXYGENASE; ARACHIDONATE 12-LIPOXYGENASE; and ARACHIDONATE 15-LIPOXYGENASE. EC 1.13.11.12.
	Protocatechuate-3,4-Dioxygenase - An enzyme that catalyzes the oxidation of protocatechuate to 3-carboxy-cis-cis-muconate in the presence of molecular oxygen. It contains ferric ion. EC 1.13.11.3.
	Tryptophan Oxygenase - A protohemoprotein. Forms formylkynurenine from L-tryptophan and molecular oxygen. EC 1.13.11.11.

Oxygenases Medical Definitions and Terms

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