Tags: Enzyme.
In enzymology a NADPH:quinone reductase (EC 1.6.5.5) is an enzyme that catalyzes the chemical reactionNADPH + H+ + 2quinone NADP+ + 2semiquinoneThe 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.