isopentenyl phosphate + phosphate + H(+) => isopentenyl diphosphate + H2O
isopentenyl phosphate + phosphate + h(+) => isopentenyl diphosphate + h2o
isopentenyl phosphate + phosphate + H(+) => isopentenyl diphosphate + H2O
isopentenyl phosphate + phosphate + h(+) => isopentenyl diphosphate + h2o