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The expected taxonomic range for this enzyme is: Silene latifolia subsp. alba
Synonyms
glucosyltransferase, uridine diphosphoglucose-isovitexin 2''-, uridine diphosphoglucose-isovitexin 2''-glucosyltransferase,
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glucosyltransferase, uridine diphosphoglucose-isovitexin 2''-
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uridine diphosphoglucose-isovitexin 2''-glucosyltransferase
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UDP-glucose + isovitexin = UDP + isovitexin 2''-O-beta-D-glucoside
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hexosyl group transfer
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UDP-glucose:isovitexin 2''-O-beta-D-glucosyltransferase
Isovitexin is a flavonoid from petals of Silene alba.
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UDP-glucose + isoorientin
UDP + isoorientin 2''-O-beta-D-glucoside
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UDP-glucose + isovitexin
UDP + isovitexin 2''-O-beta-D-glucoside
UDP-glucose + isovitexin

UDP + isovitexin 2''-O-beta-D-glucoside
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UDP-glucose + isovitexin
UDP + isovitexin 2''-O-beta-D-glucoside
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ionisation grade of substrates influences their binding to the enzyme
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UDP-glucose + isovitexin
UDP + isovitexin 2''-O-beta-D-glucoside
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pathway in flavone glycoside metabolism
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UDP-glucose + isovitexin
UDP + isovitexin 2''-O-beta-D-glucoside
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pathway in flavone glycoside metabolism
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0.3
UDPglucose

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reaction with isovitexin
0.75
UDPglucose
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reaction with isoorientin
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7.5
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reaction with isoorientin
8.5
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reaction with isovitexin
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6.5 - 8.5
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pH 6.5: about 40% of maximal activity, pH 8.5: about 30% of maximal activity, reaction with isoorientin
7.5 - 9.5
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about 50% of maximal activity at pH 7.5 and at pH 9.5, reaction with isovitexin
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brenda
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brenda
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brenda
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Heinsbroek, R.; van Brederode, J.; van Nigtevecht, G.; Maas, J.; Kamsteeg, J.; Besson, E.; Chopin, J.
The 2'æ-O-glucosylation of vitexin and isovitexin in petals of Silene alba is catalysed by two different enzymes
Phytochemistry
19
1935-1937
1980
Silene latifolia subsp. alba
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brenda
Van Brederode, J.; Chopin, J.; Kamsteeg, J.; van Nigtevecht, G.; Heinsbroek, R.
The pH dependent substrate specificity of UDP-fglucose:isovitexin 2'æ-O-glucosyltransferase
Phytochemistry
18
655-656
1979
Silene latifolia subsp. alba
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brenda
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