title: Characterization of fractions containing the thermostable agglutinogens of Neisseria gonorrhoeae.
abstract: Extract was prepared by heat treatment (100 degrees C. 2 h) of bacteria of N. gonorrhoeae strain 8551. The acid precipitate (pH 2.5) of the extract was resolved by gel chromatography (Sepharose CL-6B) into material eluted with the void volume (Fr. I) and material retarded by the column (Fr. II). Fr. I contained at least three precipitinogens, the antigenic determinant a of LPS and the protein determinant b. The antigens demonstrable in Fr. I were also detected in an outer membrane preparation obtained by extraction of the bacteria with a lithium acetate buffer. Fr. II contained LPS and several other precipitinogens. The antigens of Fr. I included the heat stable agglutinogens of the gonococcus, and antibodies of these could be raised by immunization of rabbits with the Fr. I material.
mesh_terms: D000372:Agglutination Tests; D000907:Antibodies, Bacterial / Q000032:analysis; D000942:Antigens, Bacterial; D005591:Chemical Fractionation; D004591:Electrophoresis, Polyacrylamide Gel; D000939:Epitopes; D006386:Hemagglutination Tests; D006358:Hot Temperature; D005779:Immunodiffusion; D007123:Immunoelectrophoresis, Two-Dimensional; D008070:Lipopolysaccharides / Q000276:immunology; D009344:Neisseria gonorrhoeae / Q000276:immunology*; D012703:Serotyping
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D000939:Epitopes; D008070:Lipopolysaccharides