sn-glycerol 1-phosphate + all-trans-heptaprenyl diphosphate => 3-heptaprenyl-sn-glycero-1-phosphate + diphosphate
sn-glycerol 1-phosphate + all-trans-heptaprenyl diphosphate => 3-heptaprenyl-sn-glycero-1-phosphate + diphosphate