ID 2.4.1.240 DE flavonol-3-O-glycoside glucosyltransferase. CA a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside + UDP-alpha-D- CA glucose = a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)- CA beta-D-glucoside + H(+) + UDP. CC -!- One of three specific glucosyltransferases in pea (Pisum sativum) CC that successively add a beta-D-glucosyl group first to O-3 of CC kaempferol, and then to O-2 of the previously added glucosyl group CC giving the 3-O-sophoroside and then the 3-O-sophorotrioside (see also CC EC 2.4.1.91 and EC 2.4.1.239). //