a 5'-end diphospho-guanosine in mRNA + GTP + H(+) <=> a 5'-end (5'-triphosphoguanosine)-guanosine in mRNA + diphosphate
a 5'-end diphospho-guanosine in mrna + gtp + h(+) <=> a 5'-end (5'-triphosphoguanosine)-guanosine in mrna + diphosphate
a 5'-end diphospho-guanosine in mRNA + GTP + H(+) <=> a 5'-end (5'-triphosphoguanosine)-guanosine in mRNA + diphosphate
a 5'-end diphospho-guanosine in mrna + gtp + h(+) <=> a 5'-end (5'-triphosphoguanosine)-guanosine in mrna + diphosphate