Tags: Enzyme.
In enzymology a flavonol-3-O-glycoside glucosyltransferase (EC 2.4.1.240) is an enzyme that catalyzes the chemical reactionUDP-glucose + a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside UDP + a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucosideThus the two substrates of this enzyme are UDP-glucose and [[flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside]] whereas its 3 products are UDP flavonol and [[3-O-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside]].This enzyme belongs to the family of glycosyltransferases specifically the hexosyltransferases.