title: The chemical structure of a fragment of Micrococcus lysodeikticus cell-wall.
abstract: A fragment of Micrococcus lysodeikticus cell-wall obtained by cetylpyridinium recipitation from the nondialyzable portion of the degradation products of egg-white lysozyme was studied by the periodate oxidation and methylation procedures. The fragment consists of a polysaccharide chain composed of about 40 repeating (1 leads to 4)-O-(2-acetamido-2-deoxy-beta-D-mannopyranosyluronic acid)-(1 leads to 6)-O-(alpha-D-glucopyranosyl) residues with D-glucopyranosyl residues at both ends. The alpha-D-glucopyranose residue at the reducing end is linked to a phosphate group that is also linked to C-6 of a 2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucopyranosyl residue of a peptidoglycan chain composed of four repeating (1 leads to 4)-O-[2-acetamido-3-O-(D-1-carboxyethyl)-2-deoxy-beta-D-glucopyranosyl] residues. The peptidoglycan chain has, as nonreducing group, a 2-acetamido-2-deoxy-beta-D-glucopyranosyl group, and, as reducing residue, a 2-acetamido-3-O-(D-1-carboxytheyl)-2-deoxy-beta-D-glucose residue.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001665:Binding Sites; D002241:Carbohydrates / Q000032:analysis; D002473:Cell Wall / Q000032:analysis*; D002849:Chromatography, Gas; D013058:Mass Spectrometry; D008837:Micrococcus / Q000032:analysis*; D010457:Peptidoglycan / Q000032:analysis*; D011135:Polysaccharides, Bacterial / Q000032:analysis
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D010457:Peptidoglycan; D011135:Polysaccharides, Bacterial