(2R)-2-phosphoglycerate = (2R)-3-phosphoglycerate (2R)-3-phospho-glyceroyl phosphate = (2R)-2,3-bisphosphoglycerate + H(+) This is the product of a processed gene created by retroposition from mRNA of an expressed gene. This gene seems to be expressed. Belongs to the phosphoglycerate mutase family. BPG-dependent PGAM subfamily.