title: Geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase
text: # Geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase
  
  Geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase may refer to:
  
  * Geranylfarnesyl diphosphate synthase, enzyme
  * Hexaprenyl diphosphate synthase (geranylgeranyl-diphosphate specific), enzyme
  * All-trans-nonaprenyl diphosphate synthase (geranylgeranyl-diphosphate specific), enzyme
  