Molecular and biochemical characterization of the UDP-glucose: Anthocyanin 5-O-glucosyltransferase from Vitis amurensis

UDP-glucose: anthocyanin 5-O-glucosyltransferase from Vitis amurensis grapes (Va5GT), which catalyzes the glucosylation of anthocyanidin monoglucosides at the 5-O-position, is crucial for the biosynthesis of anthocyanidin bis-glucosides.