1-O-(trans-4-coumaroyl)-beta-D-glucose + UDP => (E)-4-coumarate + UDP-alpha-D-glucose
1-o-(trans-4-coumaroyl)-beta-d-glucose + udp => (e)-4-coumarate + udp-alpha-d-glucose
1-O-(trans-4-coumaroyl)-beta-D-glucose + UDP => (E)-4-coumarate + UDP-alpha-D-glucose
1-o-(trans-4-coumaroyl)-beta-d-glucose + udp => (e)-4-coumarate + udp-alpha-d-glucose