a ribonucleoside 5'-diphosphate + GTP => a ribonucleoside 5'-triphosphate + GDP
a ribonucleoside 5'-diphosphate + gtp => a ribonucleoside 5'-triphosphate + gdp
a ribonucleoside 5'-diphosphate + GTP => a ribonucleoside 5'-triphosphate + GDP
a ribonucleoside 5'-diphosphate + gtp => a ribonucleoside 5'-triphosphate + gdp