Tags: Enzyme.
Hexaprenyl diphosphate synthase (geranylgeranyl-diphosphate specific) (EC 2.5.1.82 HexPS (all-E) hexaprenyl diphosphate synthase (all-trans) hexaprenyl diphosphate synthase hexaprenyl pyrophosphate synthase HexPPs hexaprenyl diphosphate synthase) is an enzyme with system name geranylgeranyl-diphosphate:isopentenyl-diphosphate transferase (adding 2 isopentenyl units).