| NADPH:quinone reductase | |
| Ec Number: | 1.6.5.5 |
| Cas Number: | 9032-20-6 |
| Go Code: | 0003960 |
In enzymology, a NADPH:quinone reductase is an enzyme that catalyzes the chemical reaction
NADPH + H+ + 2quinone
\rightleftharpoons
The 3 substrates of this enzyme are NADPH, H+, and quinone, whereas its two products are NADP+ and semiquinone.
This enzyme belongs to the family of oxidoreductases, specifically those acting on NADH or NADPH with a quinone or similar compound as acceptor. The systematic name of this enzyme class is NADPH:quinone oxidoreductase. This enzyme is also called NADPH2:quinone reductase.
As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes,, and .