. "Catalysis of the reaction: 2,3-bis(3-hydroxytetradecanoyl)-D-glucosaminyl-(1->6)-beta-D-2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl 1-phosphate + ATP = ADP + 2 H(+) + lipid IV(a)." . . . "tetraacyldisaccharide 4'-kinase activity" . "ATP:2,3,2',3'-tetrakis(3-hydroxytetradecanoyl)-D-glucosaminyl-beta-D-1,6-glucosaminyl-beta-phosphate 4'-O-phosphotransferase activity" . "lipid-A 4'-kinase activity" . . .