Geranylgeranyl-diphosphate:isopentenyl-diphosphate transtransferase
# 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
