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1.6.5.2: NAD(P)H dehydrogenase (quinone)

This is an abbreviated version!
For detailed information about NAD(P)H dehydrogenase (quinone), go to the full flat file.

Word Map on EC 1.6.5.2

Reaction

NAD(P)H
+
H+
+
a quinone
=
NAD(P)+
+
a hydroquinone

Synonyms

1,4-benzoquinone reductase, azoreductase, chromate reductase, ChrR, dehydrogenase, reduced nicotinamide adenine dinucleotide (phosphate, quinone), diaphorase, DPND, DPNH-diaphorase, DT-diaphorase, DTD, DVU_2399, DVU_2400, DVU_2401, EC 1.6.99.2, FerB, ferric reductase B, flavoprotein NAD(P)H-quinone reductase, FlxABCD, FMN-dependent NAD(P)H:quinone oxidoreductase, Internal NADH dehydrogenase, MdaB, Menadione oxidoreductase, Menadione reductase, NAD(P)H dehydrogenase, NAD(P)H dehydrogenase complex, NAD(P)H menadione reductase, NAD(P)H quinone oxidoreductase, NAD(P)H quinone oxidoreductase-1, NAD(P)H quinone oxidoreductase1, NAD(P)H quinone reductase, NAD(P)H quinone-oxidoreductase 1, NAD(P)H-QR, NAD(P)H-quinone dehydrogenase, NAD(P)H-quinone oxidoreductase, NAD(P)H: (quinone acceptor) oxidoreductase, NAD(P)H: (quinone-acceptor)oxidoreductase, NAD(P)H: menadione oxidoreductase, NAD(P)H: Quinone oxidoreductase, NAD(P)H: quinone oxidoreductase 1, NAD(P)H: quinone oxidoreductase-1, NAD(P)H: quinone reductase, NAD(P)H:acceptor oxidoreductase, NAD(P)H:quinone acceptor oxidoreductase, NAD(P)H:quinone oxidoreducatase 1, NAD(P)H:quinone oxidoreductase, NAD(P)H:quinone oxidoreductase 1, NAD(P)H:quinone oxidoreductase I, NAD(P)H:quinone oxidoreductase-1, NAD(P)H:quinone reductase, NAD(P)H:quinoneoxidoreductase 1, NADH-menadione reductase, NADH:quinone oxidoreductase 1, NADPH quinone reductase, NADPH: quinone oxidoreductase-1, NADPH:quinone oxidoreductase, NADPH:quinone oxidoreductase 1, NAD[P]H:quinone acceptor oxidoreductase 1, Naphthoquinone reductase, Ndh complex, NDH2, nicotinamide adenine dinucleotide phosphate:quinone oxidoreductase 1, NQO1, NQR, NRH:quinone reductase 1, p-Benzoquinone reductase, Pden_4071, PfNdh2, Phylloquinone reductase, QOR2, QR1, QR2, Quinone reductase, quinone reductase 1, quinone reductase type 1, Reduced NAD(P)H dehydrogenase, reduced nicotinamide-adenine dinucleotide (phosphate) dehydrogenase, TcpB, TmQR2, type II NADH: quinone oxidoreductase, Viologen accepting pyridine nucleotide oxidoreductase, Vitamin K reductase, vitamin-K reductase, WrbA

ECTree

     1 Oxidoreductases
         1.6 Acting on NADH or NADPH
             1.6.5 With a quinone or similar compound as acceptor
                1.6.5.2 NAD(P)H dehydrogenase (quinone)

Natural Substrates Products

Natural Substrates Products on EC 1.6.5.2 - NAD(P)H dehydrogenase (quinone)

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
NAD(P)H + H+ + a quinone
NAD(P)+ + a hydroquinone
show the reaction diagram
the enzyme catalyzes a detoxification process. QR1 gene expression is induced in response to xenobiotics, oxidants, heavy metals, UV light, and ionisation radiation. The enzyme is part of an electrophilic-induced and/or oxidative stress-induced cellular defense mechanism that includes the induction of more than two dozen defensive genes
-
-
?
NADH + H+ + 17-(allylamino)-17-demethoxygeldanamycin
?
show the reaction diagram
-
NAD(P)H:quinone oxidoreductase 1 in pancreatic cell lines metabolizes the heat shock protein 90 inhibitor 17-(allylamino)-17-demethoxygeldanamycin to the corresponding hydroquinone
-
-
?
NADH + H+ + 2-methyl-1,4-naphthoquinone
NAD+ + 2-methyl-1,4-naphthoquinol
show the reaction diagram
-
-
-
-
?
NADH + H+ + a quinone
NAD+ + a hydroquinone
show the reaction diagram
NADH + H+ + atovaquone
NAD+ + reduced atovaquone
show the reaction diagram
-
atovaquone is 2-[4-(4-chlorophenyl)cyclohexyl]-3-hydroxynaphthalene-1,4-dione
-
-
?
NADH + H+ + duroquinone
NAD+ + duroquinol
show the reaction diagram
-
-
-
-
?
NADH + H+ + ubiquinone
NAD+ + ubiquinone
show the reaction diagram
-
the enzyme plays an essential role in maintaining a reduced ubiquinone-pool during infection (Plasmodium falciparum is the causative agents of malaria). The enzyme is not only essential to parasite survival in vivo but may also contribute to the severity and outcome of disease. Type II NADH:quinone oxidoreductase the membrane-bound respiratory enzyme differs from the canonical NADH:dehydrogenase (complex I), because it is not involved in the vectorial transfer of protons across membranes. In the electron transport chain of Plasmodium, the canonical multimeric complex I (NADH:dehydrogenase) found in mammalian mitochondria is absent, and, instead, the parasite possesses five quinone-dependent oxidoreductases, namely a type II NADH:quinone oxidoreductase (PfNDH2), a malate: quinone oxidoreductase (MQO), a dihydroorotate dehydrogenase (DHOD), a glycerol-3-phosphate dehydrogenase (G3PDH), and a succinate: quinone oxidoreductase (SDH). These enzymes link cytosolic metabolism to mitochondrial metabolism, generating reducing power (ubiquinol) for the bc1 complex and an aa3-type cytochrome oxidase, enabling proton pumping and energy conservation
-
-
?
NADPH + H+ + 17-(allylamino)-17-demethoxygeldanamycin
?
show the reaction diagram
-
NAD(P)H:quinone oxidoreductase 1 in pancreatic cell lines metabolizes the heat shock protein 90 inhibitor 17-(allylamino)-17-demethoxygeldanamycin to the corresponding hydroquinone
-
-
?
NADPH + H+ + 2-methyl-1,4-naphthoquinone
NADP+ + 2-methyl-1,4-naphthoquinol
show the reaction diagram
-
-
-
-
?
NADPH + H+ + a quinone
NADP+ + a hydroquinone
show the reaction diagram
-
-
-
-
?
NADPH + H+ + duroquinone
NADP+ + duroquinol
show the reaction diagram
-
-
-
-
?
quinone + NAD(P)H
hydroquinone + NAD(P)+
show the reaction diagram
vitamin K + NAD(P)H + H+
reduced vitamin K + NAD(P)+
show the reaction diagram
-
-
-
?
additional information
?
-