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EC Tree
The taxonomic range for the selected organisms is: Escherichia coli
The expected taxonomic range for this enzyme is: Bacteria, Archaea
Synonyms
d-xylonate dehydratase, xylonate dehydratase, ccxydht,
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D-xylo-aldonate dehydratase
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D-xylonate dehydratase
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dehydratase, D-xylonate
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C-O bond cleavage by elimination of water
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D-xylonate hydro-lyase (2-dehydro-3-deoxy-D-xylonate-forming)
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D-xylonate
2-dehydro-3-deoxy-D-arabinonate + H2O
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D-xylonate
2-dehydro-3-deoxy-D-arabinonate + H2O
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Mg2+
5 mM, required for activity, activates
Mn2+
5 mM, required for activity, activates
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2-mercaptoethanol
1 mM, 44% loss of activity
dithiothreitol
1 mM, 70% loss of activity
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4.88
D-xylonate
pH 8.0, 30°C
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6.7 - 8.5
pH 6.7: about 65% of maximal activity, pH 8.5: about 65% of maximal activity
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20 - 42
20°C: about 60% of maximal activity, 42°C: about 50% of maximal activity, activity is almost undetectable above 60x01C°
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SwissProt
brenda
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70
the enzyme is denatured to precipitation above 70°C
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Jiang, Y.; Liu, W.; Cheng, T.; Cao, Y.; Zhang, R.; Xian, M.
Characterization of D-xylonate dehydratase YjhG from Escherichia coli
Bioengineered
6
227-232
2015
Escherichia coli (P39358), Escherichia coli, Escherichia coli K12 (P39358)
brenda
4.2.1.82 xylonate dehydratase
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