flavonol-3-O-glycoside glucosyltransferase activity
flavonol-3-o-glycoside glucosyltransferase activity
Catalysis of the reaction: UDP-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-glucoside.