C55-PP-GLCNAC-MANNACA-FUC4NAC ManNAcA-GlcNAc-Fuc4NAc-PP-lipid ManNAcA-GlcNAc-Fuc4NAc-pyrophosphorylundecaprenol lipid III undecaprenyl N-acetyl-glucosaminyl-N-acetyl-mannosaminuronate-4-acetamido-4,6-dideoxy-D-galactose pyrophosphate