NADPH dehydrogenase (quinone)

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NADPH dehydrogenase (quinone)
Identifiers
EC no. 1.6.5.10
CAS no. 37256-37-4
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MetaCyc metabolic pathway
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In enzymology, a NADPH dehydrogenase (quinone) (EC 1.6.5.10) is an enzyme that catalyzes the chemical reaction

Contents

NADPH + H+ + acceptor NADP+ + reduced acceptor

The 3 substrates of this enzyme are NADPH, H+, and acceptor, whereas its two products are NADP+ and reduced acceptor.

This enzyme belongs to the family of oxidoreductases, specifically those acting on NADH or NADPH with other acceptors. The systematic name of this enzyme class is NADPH:(quinone-acceptor) oxidoreductase. Other names in common use include reduced nicotinamide adenine dinucleotide phosphate (quinone), dehydrogenase, NADPH oxidase, and NADPH2 dehydrogenase (quinone). It has 2 cofactors: FAD, and Flavoprotein. Several compounds are known to inhibit this enzyme, including Folate, and Dicumarol.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1F5V.

See also

Related Research Articles

A dehydrogenase is an enzyme belonging to the group of oxidoreductases that oxidizes a substrate by reducing an electron acceptor, usually NAD+/NADP+ or a flavin coenzyme such as FAD or FMN. Like all catalysts, they catalyze reverse as well as forward reactions, and in some cases this has physiological significance: for example, alcohol dehydrogenase catalyzes the oxidation of ethanol to acetaldehyde in animals, but in yeast it catalyzes the production of ethanol from acetaldehyde.

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In enzymology, a NAD(P)H dehydrogenase (quinone) (EC 1.6.5.2) is an enzyme that catalyzes the chemical reaction

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References


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