The oxygenated sterols( 26-oxygenosterols ganoderol A, ganoderol B, ganoderal A, and ganoderic acid Y) from G. lucidum can inhibit cholesterol biosynthesis via conversion of acetate or mevalonate as a precursor of cholesterol.
Geranyl pyrophosphate is an intermediate in the mevalonate pathway. It is formed from dimethylallyl pyrophosphate and isopentenyl pyrophosphate by geranyl pyrophosphate synthase. Geranyl pyrophosphate is used in the biosynthesis of farnesyl pyrophosphate , geranylgeranyl pyrophosphate , cholesterol, terpenes, and terpenoids.
FR900098 is a derivative of fosmidomycin that has antimalarial activity (IC50s = 170, 170, and 90 nM for HB3, A2, and Dd2 P. falciparum strains, respectively). FR900098 inhibits DOXP reductoisomerase, a key enzyme in the non-mevalonate pathway of isoprenoid biosynthesis, in vitro in a dose-dependent manner. FR900098 (>10 mg/kg, i.p.) eradicated P. vinckei parasites within four days in mice.