5'-end (N(7)-methyl 5'-triphospho-guanosine)-adenosine(2-) residue
5'-end (n(7)-methyl 5'-triphospho-guanosine)-adenosine(2-) residue
A 7-methyl guanosine (m7G) linked via an inverted 5'-5' triphosphate bridge to an initiating adenosine nucleotide; major species at pH 7.3.