In order to investigate the substrate binding feature of undecaprenyl diphosphate synthase from Micrococcus luteus BP 26 with respect to farnesyl diphosphate and a reaction intermediate,(Z, E, E)-geranylgeranyl diphosphate, we examined the reactivity of artificial substrate analogs, 3-desmethyl farnesyl diphosphate and 3-desmethyl Z-geranylgeranyl diphosphate, which lack the methyl group at the 3-position of farnesyl diphosphate and Z- ...