Geranyl diphosphate (GPP) is an intermediate in isoprenoid biosynthesis. Isoprenoid compounds are a diverse group of natural products which are essential components in all cells. Isoprenoids are biosynthesized from the simple precursors isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Eukaryotes, fungi, and some gram-positive bacteria produce IPP through the mevalonate (MVA) pathway whereas gram-negative and some gram-positive bacteria utilize the non-mevalonate or 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway. GPP is formed by the condensation of DMAPP and IPP catalyzed by geranyl diphosphate synthase.
Provided as the tris-ammonium salt