Isolated from the plants Matthiola incana (stock) [1] and Arabidopsis thaliana (mouse-eared cress) [2]. The enzyme has similar activity with the 3-glucosides of pelargonidin, cyanidin, delphinidin, quercetin and kaempferol as well as with cyanidin 3-O-rhamnosyl-(1¡ú6)-glucoside and cyanidin 3-O-(6-acylglucoside). There is no activity with other UDP-sugars or with cyanidin 3,5-diglucoside.
Cofactor
History
Reactions
UDP-alpha-D-xylose + an anthocyanidin 3-O-beta-D-glucoside = Udp + an anthocyanidin 3-O-beta-D-sambubioside.