2.4.1.239: flavonol-3-O-glucoside glucosyltransferase
This is an abbreviated version!
For detailed information about flavonol-3-O-glucoside glucosyltransferase, go to the full flat file.
Reaction
Synonyms
flavonol 3-O-glucoside/galactoside (1->2) glucosyltransferase, GmF3G2''Gt, UDP-glucose:glucosyltransferase, UGT79B30
ECTree
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Reaction
Reaction on EC 2.4.1.239 - flavonol-3-O-glucoside glucosyltransferase
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UDP-glucose + a flavonol 3-O-beta-D-glucoside = UDP + a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside
UDP-glucose + a flavonol 3-O-beta-D-glucoside = UDP + a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside
one of three specific glucosyltransferases in pea, Pisum sativum, that successively add a beta-D-glucosyl group first to O-3 of kaempferol, and then to O-2 of the previously added glucosyl group giving the 3-O-sophoroside and then the 3-O-sophorotrioside, see also EC 2.4.1.91, flavonol 3-O-glucosyltransferase and EC 2.4.1.240, flavonol-3-O-glycoside glucosyltransferase, TDP-glucose can replace UDP-glucose as the glucose donor but the reaction proceeds more slowly
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