Geranyl pyrophosphate
Geranyl pyrophosphate, also known as geranyl diphosphate, is an intermediate in the HMG-CoA reductase pathway used by organisms in the biosynthesis of farnesyl pyrophosphate and geranylgeranyl pyrophosphate. These species are respectively precursors to sesquiterpenes and diterpenes.
and dimethylallyl pyrophosphate are condensed by geranyl pyrophosphate synthase to produce geranyl pyrophosphate and pyrophosphate. The carbon skeletons of DMAPP and IPP have been colored to indicate their location in GPP.