an anthocyanidin + UDP-alpha-D-glucose + H(+) = an anthocyanidin 3-O-beta-D-glucoside + UDP
an anthocyanidin + udp-alpha-d-glucose + h(+) = an anthocyanidin 3-o-beta-d-glucoside + udp
an anthocyanidin + UDP-alpha-D-glucose + H(+) = an anthocyanidin 3-O-beta-D-glucoside + UDP
an anthocyanidin + udp-alpha-d-glucose + h(+) = an anthocyanidin 3-o-beta-d-glucoside + udp