(2R)-3-phosphoglycerate + GTP + H(+) => 3-[(R)-glyceryl]-diphospho-5'-guanosine + diphosphate
(2r)-3-phosphoglycerate + gtp + h(+) => 3-[(r)-glyceryl]-diphospho-5'-guanosine + diphosphate
(2R)-3-phosphoglycerate + GTP + H(+) => 3-[(R)-glyceryl]-diphospho-5'-guanosine + diphosphate
(2r)-3-phosphoglycerate + gtp + h(+) => 3-[(r)-glyceryl]-diphospho-5'-guanosine + diphosphate