SEARCH Articles Figures Tables 5-Phosphoribosyl-1 -pyrophosphate purine biosynthesis Adenosine triphosphate pyrophosphate biosynthesis Biosynthesis of C5 Pyrophosphates Geranyl pyrophosphate biosynthesis Isopentenyl pyrophosphate biosynthesis Isopentyl pyrophosphate biosynthesis Mevalonate-5-pyrophosphate cholesterol biosynthesis Phosphoribosyl pyrophosphate biosynthesis Presqualene pyrophosphate, biosynthesis Pyrophosphates, nucleoside, biosynthesis Pyrophosphates, nucleoside, biosynthesis esters