title: [Experience in studying protein A in staphylococcal cultures].
abstract: Methods of quantitative and qualitative determination of protein A in staphylococcus cultures were studied comparatively. The maximal number of strains positive by protein A were revealed by means of indirect hemagglutination test with cell extracts. Quantitative and qualitative characteristics by protein A can be used in studying the problems of strain and clone heterogeneity of S. aureus. A common antigen was revealed in the reactions with human gamma-globulin in 21 of 38 S. aureus strains, and in 1 of 11 S. epidermidis strains; the presence of this antigen failed to correlate with the quantitative protein A content in the same strains.
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis; D000939:Epitopes; D006386:Hemagglutination Tests; D013205:Staphylococcal Protein A / Q000032:analysis* / Q000276:immunology; D013210:Staphylococcus / Q000032:analysis* / Q000276:immunology; D013211:Staphylococcus aureus / Q000032:analysis* / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D000939:Epitopes; D013205:Staphylococcal Protein A
vernacular_title: Izuchenie belka A u razlichnykh shtammov stafilokokka.