A product produced by Streptococcus pyogenes that is bound to the bacterial cell but may sometimes be released. SLS causes beta hemolysis on aerobically incubated blood-agar plates and can act as a leukocidin by killing leukocytes that phagocytose the bacterial cell to which it is bound.

Microbiology. . 2009.

Look at other dictionaries:

  • streptolysin S — Thought to be a peptide of 28 residues: causes zone of b haemolysis around streptococcal colonies on blood agar. Mechanism of haemolysis unclear. Toxic to leucocytes, platelets, and several cell lines …   Dictionary of molecular biology

  • streptolysin S — an oxygen stable and nonantigenic hemolysin and leukocidin produced by many strains of group A streptococci. It is sensitive to treatment with heat or acid, but is not inactivated by oxygen …   Medical dictionary

  • streptolysin — A hemolysin produced by streptococci. s. O a hemolysin that is produced by β hemolytic streptococci and is hemolytically active only in the reduced state; anti s. O produced during infection is of diagnostic significance. * * * strep·to·ly·sin… …   Medical dictionary

  • Streptolysin — Strepto|lysi̱n [zu ↑strepto... u. gr. λυειν = lösen, auflösen] s; s, e: von Streptokokken gebildetes Gift, das die Blutkörperchen und den Blutfarbstoff auflöst …   Das Wörterbuch medizinischer Fachausdrücke

  • Streptolysin — Strep|to|ly|sin [↑ Strepto (2) u. ↑ Lysin (2)]: ↑ Hämolysin. * * * Strep|to|ly|sin, das; s, e [zu griech. lýein = (auf)lösen] (Med.): von Streptokokken gebildetes Gift, das die Blutkörperchen u. den Blutfarbstoff auflöst …   Universal-Lexikon

  • Streptolysin — Strep|to|ly|sin das; s, e <zu ↑Lysin> von Streptokokken gebildetes Gift, das die Blutkörperchen u. den Blutfarbstoff auflöst (Med.) …   Das große Fremdwörterbuch

  • Anti-streptolysin O — (ASO) is the antibody produced against an antigen produced by Lancefield group A streptococci. The enzyme is called streptolysin O , wherein the O stands for oxygen labile ; the other antigen being oxygen stable streptolysin S. Both the enzymes… …   Wikipedia

  • Streptolysine —   [zu griechisch lýein »(auf)lösen«], v. a. von β hämolysierenden Streptokokken gebildete Giftstoffe (Exotoxine). Besonders bedeutsam ist Streptolysin O (sauerstoffempfindliches Streptolysin), das rote Blutkörperchen zerstört, schädlich auf das… …   Universal-Lexikon

  • Picibanil — Picibanil, meist auch als OK 432 bezeichnet, ist ein Sklerolosant und Immunstimulans. Inhaltsverzeichnis 1 Zusammensetzung und Eigenschaften 2 Anwendung und Wirkung 3 Nebenwirkungen …   Deutsch Wikipedia

  • Hemolysin — Pfam box Symbol = Leukocidin Name = width =250 caption =Alpha hemolysin, a transmembrane heptamer Pfam= PF07968 InterPro= IPR001340 SMART= Prosite = SCOP = TCDB = OPM family= 35 OPM protein= 7ahl PDB=PDB3|1t5rH:57 303 PDB3|1lkfA:60 310 PDB3|2lkfA …   Wikipedia

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