Compound as reactive (1)
di-trans,poly-cis-heptaprenyl diphosphate + isopentenyl diphosphate → diphosphate + all-trans-octaprenyl diphosphate
Compound as product (1)
all-trans-hexaprenyl diphosphate + isopentenyl diphosphate → diphosphate + di-trans,poly-cis-heptaprenyl diphosphate
Reversible reaction (2)
isopentenyl diphosphate + di-trans,poly-cis-heptaprenyl diphosphate ↔ di-trans,poly-cis-octaprenyl diphosphate + H+ + diphosphate
isopentenyl diphosphate + di-trans,poly-cis-hexaprenyl diphosphate ↔ di-trans,poly-cis-heptaprenyl diphosphate + H+ + diphosphate