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EC 1.6.5.10 Details
EC number
1.6.5.10
Accepted name
NADPH dehydrogenase (quinone)
Reaction
NADPH + H+ + a quinone = NADP+ + a quinol
Other name(s)
reduced nicotinamide adenine dinucleotide phosphate (quinone) dehydrogenase, NADPH oxidase, NADPH2 dehydrogenase (quinone)
Systematic name
NADPH:(quinone-acceptor) oxidoreductase
CAS registry number
37256-37-4
Comment
A flavoprotein [1, 2]. The enzyme from Escherichia coli is specific for NADPH and is most active with quinone derivatives and ferricyanide as electron acceptors [3]. Menaquinone can act as acceptor. The enzyme from hog liver is inhibited by dicoumarol and folic acid derivatives but not by 2,4-dinitrophenol [1].
History
created 1972 as EC 1.6.99.6, transferred 2011 to EC 1.6.5.10
EC Tree
1.1.3.1 created 1961, deleted 1984
1.1.3.22 created 1961 as EC 1.2.3.2, transferred 1984 to EC 1.1.3.22, modified 1989, deleted 2004
1.1.3.25 created 1986, deleted 2005
1.1.3.26 created 1989, deleted 2002
1.1.3.31 created 1992, deleted 2003
1.1.3.32 created 1999, deleted 2002
1.1.3.33 created 1999, deleted 2002
1.1.3.34 created 1999, deleted 2002
1.1.3.35 created 1999, deleted 2002
1.1.3.36 created 1999, deleted 2002