Reaction catalyzed by tritrans,polycis-undecaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific] (2.5.1.89)
+
7
=
7
+
geranylgeranyl diphosphate
+
7 isopentenyl diphosphate
=
7 diphosphate
+
tritrans,heptacis-undecaprenyl diphosphate