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  • Title: The chemical structure of a fragment of Micrococcus lysodeikticus cell-wall.
    Author: Din NU, Jeanloz RW.
    Journal: Carbohydr Res; 1976 Apr; 47(2):245-60. PubMed ID: 1268881.
    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.
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