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 => a ribonucleoside 5'-diphosphate + gtp