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Ligand menadiol

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Basic Ligand Information

Molecular Structure
Picture of menadiol (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C11H10O2
menadiol
ZJTLZYDQJHKRMQ-UHFFFAOYSA-N
Synonyms:
2-methyl-1,4-naphthoquinol, 2-methyl-1,4-naphtoquinol, menadione hydroquinol, reduced menadione, reduced menaphthone
Pathway Source
Pathways

Roles as Enzyme Ligand

In Vivo Product in Enzyme-catalyzed Reactions (5 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + menadione = 1-(beta-D-ribofuranosyl)nicotinamide + menadiol
show the reaction diagram
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protoporphyrinogen IX + 3 menadione = protoporphyrin IX + 3 menadiol
show the reaction diagram
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5-methyltetrahydrofolate + oxidized menadione = 5,10-methylenetetrahydrofolate + reduced menadione
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (15 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
nitrate + 2-methyl-1,4-naphthoquinol = nitrite + 2-methyl-1,4-naphthoquinone + H2O
show the reaction diagram
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dimethylallyl diphosphate + menadione hydroquinol = diphosphate + vitamin MK1
show the reaction diagram
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menadiol + oxidized dithiothreitol = menadione + dithiothreitol
show the reaction diagram
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menadiol + O2 + n H+[side 1] = menadione + H2O + n H+[side 2]
show the reaction diagram
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Product in Enzyme-catalyzed Reactions (76 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
menadione + NADPH = menadiol + NADP+
show the reaction diagram
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menadione + NADPH + H+ = menadiol + NADP+
show the reaction diagram
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sn-glycerol 3-phosphate + menadione = glycerone phosphate + reduced menadione
show the reaction diagram
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D-glucose + menadione = D-glucono-1,5-lactone + menadiol
show the reaction diagram
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2-methyl-1,4-naphthoquinone + reduced coenzyme F420 = 2-methyl-1,4-naphthoquinol + oxidized coenzyme F420
show the reaction diagram
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phenylacetyl-CoA + H2O + menadione = phenylglyoxylyl-CoA + menadiol
show the reaction diagram
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NADH + 2-methyl-1,4-naphthoquinone = NAD+ + 2-methyl-1,4-naphthoquinol
show the reaction diagram
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succinate + menadione = fumarate + menadiol
show the reaction diagram
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protoporphyrinogen IX + 3 menadione = protoporphyrin IX + 3 menadiol
show the reaction diagram
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S-dihydroorotate + menadione = orotate + menadiol
show the reaction diagram
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menadione + NADPH + H+ = menadiol + NADP+
show the reaction diagram
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menadione + NADH + H+ = menadiol + NAD+
show the reaction diagram
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reduced electron-transferring-flavoprotein + menadione = electron-transferring-flavoprotein + menadiol
show the reaction diagram
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trans-4-hydroxy-L-proline + menadione = (3R,5S)-3-hydroxy-1-pyrroline-5-carboxylate + menadiol
show the reaction diagram
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(S)-nicotine + menadione + H2O = (S)-6-hydroxynicotine + menadiol
show the reaction diagram
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L-proline + menadione = (S)-1-pyrroline-5-carboxylate + menadiol
show the reaction diagram
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menadione + NADPH + H+ = menadiol + NADP+
show the reaction diagram
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NADH + H+ + menadione = NAD+ + menadiol
show the reaction diagram
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menadione + NADH = reduced menadione + NAD+
show the reaction diagram
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nitrobenzene + menadione = N-hydroxyaniline + menadiol + H2O
show the reaction diagram
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nitrite + menadione + H2O = nitrate + menadiol
show the reaction diagram
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glutathione + 2-(glutathione-S-yl)-menadiol = glutathione disulfide + menadiol
show the reaction diagram
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reduced nicotinamide hypoxanthine dinucleotide + menadione = oxidized nicotinamide hypoxanthine dinucleotide + menadiol
show the reaction diagram
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Inhibitor in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
the relative activity is drastically decreased when the reaction system is supplemented with more than 1.5 mM of menadione hydroquinol. 3 mM menadione hydroquinol almost absolutely inhibits the prenylation by precipitating the enzyme in the reaction system
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Enzyme Kinetic Parameters

kcat Value (Turnover Number) (10 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE

KM Value (11 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.23
-
pH 6. 40°C

References & Links

Links to other databases for menadiol

ChEBI
PubChem
ChEBI
PubChem