(2R)-3-phosphoglycerate + GTP + H(+) = 3-[(R)-glyceryl]-diphospho-5'-guanosine + diphosphate
(2r)-3-phosphoglycerate + gtp + h(+) = 3-[(r)-glyceryl]-diphospho-5'-guanosine + diphosphate
"3-phospho-D-glycerate guanylyltransferase"
"3-phospho-d-glycerate guanylyltransferase"