5'-end (5'-triphospho-guanosine)-guanosine(3-) residue
5'-end (5'-triphospho-guanosine)-guanosine(3-) residue
An organic anionic group obtained by deprotonation of the triphosphate OH groups of a 5'-(5'-triphospho-guanosine)-guanosine residue; major species at pH 7.3.