a 5'-end 5'-phospho-ribonucleoside-RNA + 2 S-adenosyl-L-methionine => a 5'-end (5'-bismethylphospho)-ribonucleoside-RNA + 2 S-adenosyl-L-homocysteine
a 5'-end 5'-phospho-ribonucleoside-rna + 2 s-adenosyl-l-methionine => a 5'-end (5'-bismethylphospho)-ribonucleoside-rna + 2 s-adenosyl-l-homocysteine
a 5'-end 5'-phospho-ribonucleoside-RNA + 2 S-adenosyl-L-methionine => a 5'-end (5'-bismethylphospho)-ribonucleoside-RNA + 2 S-adenosyl-L-homocysteine
a 5'-end 5'-phospho-ribonucleoside-rna + 2 s-adenosyl-l-methionine => a 5'-end (5'-bismethylphospho)-ribonucleoside-rna + 2 s-adenosyl-l-homocysteine