label: all-trans-hexaprenyl diphosphate + 2 diphosphate => 2 isopentenyl diphosphate + (2E,6E,10E)-geranylgeranyl diphosphate
label_lc: all-trans-hexaprenyl diphosphate + 2 diphosphate => 2 isopentenyl diphosphate + (2e,6e,10e)-geranylgeranyl diphosphate