label: flavonol-3-O-glycoside xylosyltransferase activity
label_lc: flavonol-3-o-glycoside xylosyltransferase activity
description: "Catalysis of the reaction: flavonol 3-O-glycoside + UDP-D-xylose = flavonol 3-O-D-xylosylglycoside + UDP."