label: alpha-D-mannose derivative + UDP-alpha-D-glucose <=> 6-(alpha-D-glucose-1-phospho)-alpha-D-mannosyl derivative + UMP + H(+)
label_lc: alpha-d-mannose derivative + udp-alpha-d-glucose <=> 6-(alpha-d-glucose-1-phospho)-alpha-d-mannosyl derivative + ump + h(+)