title: Analysis of Neisseria gonorrhoeae peptidoglycan by reverse-phase, high-pressure liquid chromatography.
abstract: The muramidase digest of peptidoglycan from Neisseria gonorrhoeae was isolated and analyzed by the use of a reverse-phase, high-pressure liquid chromatography system. As was found previously in the case of Escherichia coli, gonococci peptidoglycan is also composed of a greater number of muropeptides than can be resolved with thin-layer chromatography systems. Preliminary classification of the muropeptide components into subclasses based on O-acetyl modification and degree of cross-linkage was achieved. Examination of a penicillin-susceptible strain and a highly resistant strain with two penicillin-binding protein alterations synthesized distinctly different peptidoglycan structures, as revealed by this technique.
mesh_terms: D001426:Bacterial Proteins; D002352:Carrier Proteins / Q000235:genetics; D002851:Chromatography, High Pressure Liquid; D006602:Hexosyltransferases; D002267:Muramoylpentapeptide Carboxypeptidase / Q000235:genetics; D009154:Mutation; D009344:Neisseria gonorrhoeae / Q000032:analysis* / Q000235:genetics; D010403:Penicillin Resistance; D046915:Penicillin-Binding Proteins; D010457:Peptidoglycan / Q000032:analysis*; D010458:Peptidyl Transferases
chemical_list: D001426:Bacterial Proteins; D002352:Carrier Proteins; D046915:Penicillin-Binding Proteins; D010457:Peptidoglycan; D010458:Peptidyl Transferases; D006602:Hexosyltransferases; D002267:Muramoylpentapeptide Carboxypeptidase