1.1.1.179: D-xylose 1-dehydrogenase (NADP+, D-xylono-1,5-lactone-forming)
This is an abbreviated version!
For detailed information about D-xylose 1-dehydrogenase (NADP+, D-xylono-1,5-lactone-forming), go to the full flat file.
Reaction
Synonyms
D-xylose (nicotinamide adenine dinucleotide phosphate) dehydrogenase, D-xylose 1-dehydrogenase (NADP), D-xylose dehydrogenase, D-xylose-NADP dehydrogenase, D-xylose:NADP+ oxidoreductase, NADP+-dependent D-xylose dehydrogenase, NADP+:D-xylose dehydrogenase, XDH, xyd1
ECTree
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Substrates Products
Substrates Products on EC 1.1.1.179 - D-xylose 1-dehydrogenase (NADP+, D-xylono-1,5-lactone-forming)
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REACTION DIAGRAM
camphorquinone + NADPH
(1R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2,3-diol + NADP+
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-
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?
D-glucose + NADP+
D-gluconolactone + NADPH + H+
reaction is catalyzed with 70fold lower catalytic efficiency (kcat/KM) compared to activity with D-xylose + NADP*
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?
D-ribose + NADP+
D-ribonolactone + NADPH + H+
reaction is catalyzed with 1.8fold lower catalytic efficiency (kcat/KM) compared to activity with D-xylose + NADP*
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?
D-xylose + NAD(P)+
D-xylonolactone + NAD(P)H
is highly specific for D-xylose
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?
D-xylose + NAD+
D-xylonolactone + NADH + H+
Vmax/Km for NADP+ is 7fold higher than Vmax/KM for NAD+
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?
L-arabinose + NADP+
L-arabinono-1,4-lactone + NADPH + H+
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44% of the activity with D-xylose
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?
2-deoxy-D-glucose + NADP+
2-deoxy-D-glucono-1,5-lactone + NADPH + H+
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?
2-deoxy-D-glucose + NADP+
2-deoxy-D-glucono-1,5-lactone + NADPH + H+
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?
D-glucose + NADP+
D-glucono-1,5-lactone + NADPH + H+
20% of the activity with D-xylose
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?
D-glucose + NADP+
D-glucono-1,5-lactone + NADPH + H+
20% of the activity with D-xylose
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?
D-xylose + NAD+
D-xylono-1,5-lactone + NADH + H+
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very low activity compared to NADP+
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?
D-xylose + NADP+
D-xylono-1,5-lactone + NADPH + H+
initial step in xylose degradation
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?
D-xylose + NADP+
D-xylono-1,5-lactone + NADPH + H+
initial step in xylose degradation
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?
D-xylose + NADP+
D-xylono-1,5-lactone + NADPH + H+
enzyme has dehydrogenase and reductase activities, enzyme is identical to dihydrodiol dehydrogenase
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?
D-xylose + NADP+
D-xylono-1,5-lactone + NADPH + H+
A8BT09
best substrate
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?
D-xylonolactone + NADPH + H+
initial step in xylose degradation
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?
D-xylose + NADP+
D-xylonolactone + NADPH + H+
Vmax/Km for NADP+ is 7fold higher than Vmax/KM for NAD+
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?
?
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-benzene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-benzene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-benzene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-naphthalene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-naphthalene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
trans-naphthalene dihydrodiol + NADP+
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dihydrodiol dehydrogenase activity, probably identical with EC 1.3.1.20
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?
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D-arabinose, D-ribose, D-glucose and D-galactose are oxidized at 10-30% the rate of D-xylose
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?
additional information
?
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catalyzing oxidation of trans-dihydrodiols of aromatic hydrocarbons to corresponding catechols, probably identical with dimeric dihydrodiol dehydrogenase EC 1.3.1.20
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?
additional information
?
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D-arabinose, D-ribose, D-glucose and D-galactose are oxidized at 10-30% the rate of D-xylose
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?
additional information
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no significant oxidation with L-arabinose, D-arabinose, D-ribose, D-mannose, and L-mannose
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additional information
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no significant oxidation with L-arabinose, D-arabinose, D-ribose, D-mannose, and L-mannose
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?
additional information
?
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catalyzing oxidation of trans-dihydrodiols of aromatic hydrocarbons to corresponding catechols, probably identical with dimeric dihydrodiol dehydrogenase EC 1.3.1.20
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?
additional information
?
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D-xylose dehydrogenase catalyzes the NADP+-linked oxidation of dihydrodiols of aromatic hydrocarbons to their corresponding catechols and is regarded as a toxication enzyme in the metabolism of carcinogenic polycyclic aromatic hydrocarbons because oxidation by the enzyme yields reactive and redox-active ortho-quinones and reactive oxygen species, broad substrate specificity indicates additional roles of the enzyme in the metabolism of endogenous and xenobiotic carbonyl compounds and the prevention of the development of glycation
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additional information
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catalyzing oxidation of trans-dihydrodiols of aromatic hydrocarbons to corresponding catechols, probably identical with dimeric dihydrodiol dehydrogenase EC 1.3.1.20
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?
additional information
?
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catalyzing oxidation of trans-dihydrodiols of aromatic hydrocarbons to corresponding catechols, probably identical with dimeric dihydrodiol dehydrogenase EC 1.3.1.20
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additional information
?
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no substrates: D-arabinose, D-glucose, D-mannose, D-galactose
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?
additional information
?
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catalyzing oxidation of trans-dihydrodiols of aromatic hydrocarbons to corresponding catechols, probably identical with dimeric dihydrodiol dehydrogenase EC 1.3.1.20
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?
additional information
?
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at concentrations of up to 50 mM of L-xylose, D-ribose, D-arabinose, L-arabinose, D-glucose, D-galactose or D-fructose, the enzyme produces little NADPH and the specific activity toward these substrates are below 5% of the activity recorded with D-xylose
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?
additional information
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D-arabinose, D-ribose, D-glucose and D-galactose are oxidized at 10-30% the rate of D-xylose
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additional information
?
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A8BT09
no or poor activity with D-arabinose, D-mannose, L-rhamnose, D-lyxose, D-fructose, D-glyceraldehyde, and DL-glyceraldehyde
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?