salicin + UDP + H(+) => salicyl alcohol + UDP-alpha-D-glucose
salicin + udp + h(+) => salicyl alcohol + udp-alpha-d-glucose
salicin + UDP + H(+) => salicyl alcohol + UDP-alpha-D-glucose
salicin + udp + h(+) => salicyl alcohol + udp-alpha-d-glucose