(2R)-2-phosphoglycerate + H2O <=> (R)-glycerate + phosphate
(2r)-2-phosphoglycerate + h2o <=> (r)-glycerate + phosphate
(2R)-2-phosphoglycerate + H2O <=> (R)-glycerate + phosphate
(2r)-2-phosphoglycerate + h2o <=> (r)-glycerate + phosphate