(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 = 1-o-(trans-4-coumaroyl)-beta-d-glucose + udp