Isolated from the plants Perilla frutescens var. crispa, Verbena hybrida [1], Dahlia variabilis [2] and Gentiana triflora (clustered gentian) [3]. It will also act on anthocyanidin 3-O-(6-O-malonylglucoside) [2] and is much less active with hydroxycinnamoylglucose derivatives [3]. There is no activity in the absence of the 3-O-glucoside group.
Cofactor
History
Reactions
UDP-alpha-D-glucose + an anthocyanidin 3-O-beta-D-glucoside = Udp + an anthocyanidin 3,5-di-O-beta-D-glucoside.