Cell wall compositions of the ags1Δ ags2Δ ags3Δ mutant and the AKuBku80 parental strain. The monosaccharide compositions of the alkali-soluble (AS) and alkali-insoluble (AI) fractions are shown. Glc, glucose; Man, mannose; Gal, galactose; GlcNac, N-acetylglucosamine; GalNac, N-acetylgalactosamine.