(2R)-2-phosphoglycerate + phosphate => (2R)-2,3-bisphosphoglycerate + H2O
(2r)-2-phosphoglycerate + phosphate => (2r)-2,3-bisphosphoglycerate + h2o
(2R)-2-phosphoglycerate + phosphate => (2R)-2,3-bisphosphoglycerate + H2O
(2r)-2-phosphoglycerate + phosphate => (2r)-2,3-bisphosphoglycerate + h2o