label: hexaprenyl-diphosphate synthase ((2E,6E)-farnesyl-diphosphate specific) activity
label_lc: hexaprenyl-diphosphate synthase ((2e,6e)-farnesyl-diphosphate specific) activity
description: "Catalysis of the reaction: (2E,6E)-farnesyl diphosphate + 3 isopentenyl diphosphate = 3 diphosphate + all-trans-hexaprenyl diphosphate."