peonidin + UDP-alpha-D-glucose <=> peonidin 3-O-beta-D-glucoside + UDP
peonidin + udp-alpha-d-glucose <=> peonidin 3-o-beta-d-glucoside + udp
peonidin + UDP-alpha-D-glucose <=> peonidin 3-O-beta-D-glucoside + UDP
peonidin + udp-alpha-d-glucose <=> peonidin 3-o-beta-d-glucoside + udp