UMP(in) + UDP-alpha-D-glucose(out) => UMP(out) + UDP-alpha-D-glucose(in)
ump(in) + udp-alpha-d-glucose(out) => ump(out) + udp-alpha-d-glucose(in)
UMP(in) + UDP-alpha-D-glucose(out) => UMP(out) + UDP-alpha-D-glucose(in)
ump(in) + udp-alpha-d-glucose(out) => ump(out) + udp-alpha-d-glucose(in)