(2E,6E)-Farnesyl diphosphate and geranylgeranyl diphosphate are less effective as substrates than geranyl diphosphate. The enzyme is involved in the synthesis of the side chain of menaquinone-9 . In Oryza sativa the enzyme SPS2 is involved in providing solanesyl diphosphate for plastoquinone-9 formation .
EC 184.108.40.206 created 1972 as EC 220.127.116.11, part transferred 2010 to EC 18.104.22.168
Farnesyl diphosphate synthase and solanesyl diphosphate synthase reactions of diphosphate-modified allylic analogs: the significance of the diphosphate linkage involved in the allylic substrates for prenyltransferase.