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Cell envelope architectures and major glycans of common types of bacteria: (A) Gram-positive bacteria; (B) Gram-negative bacteria; (C) mycobacteria. AG, arabinogalactan; CL, capsular layer; LAM, lipoarabinomannan; LM, lipomannan; LPS, lipopolysaccharide; MM, mycomembrane; OM, outer membrane; PG, peptidoglycan; PIM, phosphatidylinositol; PM, plasma membrane.
