Definition: Catalysis of an oxidation-reduction (redox) reaction in which NADH or NADPH acts as a hydrogen or electron donor and reduces a quinone or a similar acceptor molecule.
GO:0016651 - oxidoreductase activity, acting on NAD(P)H
GO:0003955 - NAD(P)H dehydrogenase (quinone) activity (5) ,
GO:0003960 - NADPH:quinone reductase activity (1) ,
GO:0008753 - NADPH dehydrogenase (quinone) activity (1) ,
GO:0050136 - NADH dehydrogenase (quinone) activity (23)
Unification Links: GO:0016655
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