label: a 1,2-diacyl-3-O-(beta-D-Glc-(1->6)-beta-D-Glc-(1->6)-beta-D-Glc)-sn-glycerol + UDP + H(+) => a 1,2-diacyl-3-O-(beta-D-Glc-(1->6)-beta-D-Glc)-sn-glycerol + UDP-alpha-D-glucose
label_lc: a 1,2-diacyl-3-o-(beta-d-glc-(1->6)-beta-d-glc-(1->6)-beta-d-glc)-sn-glycerol + udp + h(+) => a 1,2-diacyl-3-o-(beta-d-glc-(1->6)-beta-d-glc)-sn-glycerol + udp-alpha-d-glucose