title: Cross-reactions of lipopolysaccharides of Pseudomonas aeruginosa in antipneumococcal and other antisera.
abstract: Lipopolysaccharides of the seven Fisher immunotypes of Pseudomonas aeruginosa gave cross-precipitation in many antipneumococcal sera. The reaction of Pseudomonas type IV in type 25 antipneumococcal serum was immediate and heavy: 93 micrograms of antibody nitrogen per ml. Correlations are described, mainly between the structures of the O-chains of the immunotypes and their specificities as shown by the cross-reactions.
mesh_terms: D000907:Antibodies, Bacterial / Q000276:immunology; D002240:Carbohydrate Sequence; D003429:Cross Reactions; D008070:Lipopolysaccharides / Q000276:immunology*; D011550:Pseudomonas aeruginosa / Q000145:classification / Q000276:immunology*; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D008070:Lipopolysaccharides