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