title: [Lysis of the cellular walls of Streptococcus group A by enzymes produced by actinomycetes].
abstract: More than 80 cultures of actinomycetes belonging to different taxanomic groups were studied with a purpose of screening actinomycetes actively producing enzymes lyzing the cell walls of group A streptococci. 31 strains of the actinomycetes producing enzymes which lyzed the cell walls by 20-50 and 60-80 per cent within 1 and 4 hours respectively were selected. The proteolytic activity of the enzymes produced by these strains was also studied. It was shown that 4 cultures, i.e. Actinomyces albus, strains 6 and 9, Actinomyces levoris, strain 29 and Actinomyces gibsonii, strain 42 were of interest as organisms producing enzymes which lyzed the streptococcal cell wall without impairing its antigenic components.
mesh_terms: D000192:Actinomycetales / Q000032:analysis / Q000201:enzymology*; D001426:Bacterial Proteins / Q000032:analysis; D001433:Bacteriolysis / Q000187:drug effects*; D002473:Cell Wall / Q000187:drug effects; D004798:Enzymes / Q000032:analysis; D013297:Streptococcus pyogenes / Q000187:drug effects*
chemical_list: D001426:Bacterial Proteins; D004798:Enzymes
vernacular_title: Izuchenie lizisa kletochnykh stenok sterptokokka gruppy A fermentami, produtsiruemymi aktinomitsetami.