1.1.1.175: D-xylose 1-dehydrogenase
This is an abbreviated version!
For detailed information about D-xylose 1-dehydrogenase, go to the full flat file.
Word Map on EC 1.1.1.175
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1.1.1.175
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d-xylonate
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nadp+
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dehydrogenases
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l-arabinose
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caulobacter
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crescentus
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reesei
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nadp+-dependent
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pentose
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d-glucose
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trichoderma
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glucose-fructose
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xylonic
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alpha-ketoglutarate
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azospirillum
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xylulose
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non-food
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co-immobilization
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oxydans
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hexoses
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haloarcula
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marismortui
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haloferax
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volcanii
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brasiliense
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gluconobacter
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lactonase
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dihydrodiol
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synthesis
- 1.1.1.175
- d-xylonate
- nadp+
- dehydrogenases
- l-arabinose
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caulobacter
- crescentus
- reesei
-
nadp+-dependent
- pentose
- d-glucose
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trichoderma
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glucose-fructose
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xylonic
- alpha-ketoglutarate
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azospirillum
- xylulose
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non-food
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co-immobilization
- oxydans
- hexoses
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haloarcula
- marismortui
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haloferax
- volcanii
- brasiliense
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gluconobacter
- lactonase
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dihydrodiol
- synthesis
Reaction
Synonyms
(NAD)-linked D-xylose dehydrogenase, D-XDH, D-xylose 1-dehydrogenase, D-xylose dehydrogenase, More, NAD+-dependent xylose dehydrogenase, NAD-D-xylose dehydrogenase, XDH, XylB
ECTree
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Engineering
Engineering on EC 1.1.1.175 - D-xylose 1-dehydrogenase
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additional information
both D-xylono-gamma-lactone and D-xylonate are produced when the Caulobacter crescentus gene xylB encoding D-xylose dehydrogenase is expressed in Saccharomyces cerevisiae, with or without co-expressionof xylC (D-xylonolactonase). XylC facilitates rapid opening of the lactone and more D-xylonate is initially produced than in its absence. In vivo [1H]NMR analysis of cell extracts, culture media and intact cells is used for analysis. The lactone and linear forms of D-xylonic acid are produced, accumulated intracellularly, and partially exported within 1560 min after D-xylose provision. Co-expression of xylB and xylC leads to rapid loss of pHluorin fluorescence and loss of vitality during production of D-xylonate. Loss of vitality in the presence of D-xylose is correlated to the extracellular pH, but fluorescence is lost from xylB and xylC expressing cells regardless of the extracellular condition. Method optimization, overview
additional information
engineering of non-conventional yeast Pichia kudriavzevii strain VTT C-79090T to recombinantly express the D-xylose dehydrogenase coding gene from Caulobacter crescentus. With this single modification the recombinant strain VTT C-79090T produces up to 171 g/l of D-xylonate from 171 g/l D-xylose at a rate of 1.4 g/l/h and a high yield, which is comparable with D-xylonate production by Gluconobacter oxydans or Pseudomonas sp. The productivity of the strain is also remarkably high at low pH, producing 146 g/l D-xylonate at pH 3.0. Comparison to production of D-xylonate from Saccharomyces cerevisiae strain VTT B-67002 expressing the gene from Caulobacter crescentus, overview
additional information
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engineering of non-conventional yeast Pichia kudriavzevii strain VTT C-79090T to recombinantly express the D-xylose dehydrogenase coding gene from Caulobacter crescentus. With this single modification the recombinant strain VTT C-79090T produces up to 171 g/l of D-xylonate from 171 g/l D-xylose at a rate of 1.4 g/l/h and a high yield, which is comparable with D-xylonate production by Gluconobacter oxydans or Pseudomonas sp. The productivity of the strain is also remarkably high at low pH, producing 146 g/l D-xylonate at pH 3.0. Comparison to production of D-xylonate from Saccharomyces cerevisiae strain VTT B-67002 expressing the gene from Caulobacter crescentus, overview
additional information
-
both D-xylono-gamma-lactone and D-xylonate are produced when the Caulobacter crescentus gene xylB encoding D-xylose dehydrogenase is expressed in Saccharomyces cerevisiae, with or without co-expressionof xylC (D-xylonolactonase). XylC facilitates rapid opening of the lactone and more D-xylonate is initially produced than in its absence. In vivo [1H]NMR analysis of cell extracts, culture media and intact cells is used for analysis. The lactone and linear forms of D-xylonic acid are produced, accumulated intracellularly, and partially exported within 1560 min after D-xylose provision. Co-expression of xylB and xylC leads to rapid loss of pHluorin fluorescence and loss of vitality during production of D-xylonate. Loss of vitality in the presence of D-xylose is correlated to the extracellular pH, but fluorescence is lost from xylB and xylC expressing cells regardless of the extracellular condition. Method optimization, overview
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additional information
-
engineering of non-conventional yeast Pichia kudriavzevii strain VTT C-79090T to recombinantly express the D-xylose dehydrogenase coding gene from Caulobacter crescentus. With this single modification the recombinant strain VTT C-79090T produces up to 171 g/l of D-xylonate from 171 g/l D-xylose at a rate of 1.4 g/l/h and a high yield, which is comparable with D-xylonate production by Gluconobacter oxydans or Pseudomonas sp. The productivity of the strain is also remarkably high at low pH, producing 146 g/l D-xylonate at pH 3.0. Comparison to production of D-xylonate from Saccharomyces cerevisiae strain VTT B-67002 expressing the gene from Caulobacter crescentus, overview
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