label: (2R)-2-O-(alpha-D-glucopyranosyl)-glycerate + phosphate => (2R)-2-O-(alpha-D-glucopyranosyl)-3-phospho-glycerate + H2O
label_lc: (2r)-2-o-(alpha-d-glucopyranosyl)-glycerate + phosphate => (2r)-2-o-(alpha-d-glucopyranosyl)-3-phospho-glycerate + h2o