Reaction: NADH + H+ + a quinone = NAD+ + a quinol
Other name(s): reduced nicotinamide adenine dinucleotide (quinone) dehydrogenase; NADH-quinone oxidoreductase; DPNH-menadione reductase; D-diaphorase; NADH2 dehydrogenase (quinone)
Systematic name: NADH:(quinone-acceptor) oxidoreductase
Comments: Menaquinone can act as acceptor. Inhibited by AMP and 2,4-dinitrophenol but not by dicoumarol or folic acid derivatives.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:
1. Koli, A.K., Yearby, C., Scott, W. and Donaldson, K.O. Purification and properties of three separate menadione reductases from hog liver. J. Biol. Chem. 244 (1969) 621-629. [PMID: 4388793]