alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA (E. coli) + a 1,2-diacyl-sn-glycero-3-phosphoethanolamine = 7-O-[2-aminoethoxy(hydroxy)phosphoryl]-alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid IVA (E. coli) + a 1,2-diacyl-sn-glycerol — reaction