a 5'-end triphospho-(purine-ribonucleoside) in mRNA + GDP + H(+) <=> a 5'-end (5'-triphosphoguanosine)-(purine-ribonucleoside) in mRNA + diphosphate
a 5'-end triphospho-(purine-ribonucleoside) in mrna + gdp + h(+) <=> a 5'-end (5'-triphosphoguanosine)-(purine-ribonucleoside) in mrna + diphosphate
a 5'-end triphospho-(purine-ribonucleoside) in mRNA + GDP + H(+) <=> a 5'-end (5'-triphosphoguanosine)-(purine-ribonucleoside) in mRNA + diphosphate
a 5'-end triphospho-(purine-ribonucleoside) in mrna + gdp + h(+) <=> a 5'-end (5'-triphosphoguanosine)-(purine-ribonucleoside) in mrna + diphosphate