Dimethylallyl Pyrophosphate

Dimethylallyl pyrophosphate (DPP) is one of two five-carbon building blocks of the isoprenoids. Isopentenyl pyrophosphate (IPP) is the other. DPP is synthesized from IPP, as shown in Figure 19.19. The first step in isoprenoid synthesis is as follows:

DPP + IPP <=> Geranyl Pyrophosphate + PPi (Figure 19.20)

See also: Cholesterol Biosynthesis, Steroid Metabolism, Steroid Hormone Synthesis, Bile Acids, Lipid-Soluble Vitamins, Figure 19.28

INTERNET LINK: Sterol Biosynthesis