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