a 5'-end ribonucleotide-RNA + a ribonucleoside 5'-triphosphate + ATP + H2O => a 5'-end phospho-ribonucleoside-ribonucleotide-RNA + AMP + 2 diphosphate + H(+)
a 5'-end ribonucleotide-rna + a ribonucleoside 5'-triphosphate + atp + h2o => a 5'-end phospho-ribonucleoside-ribonucleotide-rna + amp + 2 diphosphate + h(+)