Ligand ubiquinol-2

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Basic Ligand Information

Molecular Structure
Picture of ubiquinol-2 (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C19H28O4
ubiquinol-2
RNUCUWWMTTWKAH-JLHYYAGUSA-N
Synonyms:
QH2, reduced coenzyme Q2, ubiquinol-n, ubiquinol 2, ubiquinol Q2

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
2 ubiquinol-2 + O2 = 2 ubiquinone-2 + 2 H2O
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (6 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
2 ubiquinol-2 + O2 = 2 ubiquinone-2 + 2 H2O
show the reaction diagram
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nicotinamide riboside + reduced coenzyme Q2 = dihydronicotinamide riboside + coenzyme Q2
show the reaction diagram
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ubiquinol-2 + O2 + H+[side 1] = ubiquinone-2 + H2O + H+[side 2]
show the reaction diagram
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Product in Enzyme-catalyzed Reactions (11 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
D-glucose + ubiquinone Q2 = D-glucono-1,5-lactone + ubiquinol Q2
show the reaction diagram
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sn-glycerol 3-phosphate + coenzyme Q2 = glycerone phosphate + reduced coenzyme Q2
show the reaction diagram
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superoxide + ubiquinone Q2 + H+ = O2 + ubiquinol Q2
show the reaction diagram
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N-benzyldihydronicotinamide + oxidized coenzyme Q2 = N-benzylnicotinamide + reduced coenzyme Q2
show the reaction diagram
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reduced electron-transferring flavoprotein + ubiquinone-2 = electron-transferring flavoprotein + ubiquinol-2
show the reaction diagram
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NADH + H+ + ubiquinone-2 = NAD+ + ubiquinol-2
show the reaction diagram
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sulfide + ubiquinone-2 = sulfur + ubiquinol-2
show the reaction diagram
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S-adenosyl-L-methionine + 3-demethylubiquinol-n = S-adenosyl-L-homocysteine + ubiquinol-n
show the reaction diagram
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Inhibitor in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
substrate inhibition
-
competitive inhibitor of the fumarate reduction reaction of fumarate reductase
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Enzyme Kinetic Parameters

kcat Value (Turnover Number) (5 results)

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

KM Value (5 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE

Ki Value (1 result)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.015
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fumarate reductase, fumarate reduction reaction

References & Links

Links to other databases for ubiquinol-2

ChEBI
PubChem
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PubChem