目 Mechanism of Action曹 EXamples: Streptococci Some secrete Hyaluronidase-breaks down hyaluronic acid(connective tissue) DNase-thins out pus made viscous by DNA from dead White blood cell Streptokinase(protease)cleaves precursor of plasminogen activator to active form >> Converts plasminogen to plasmin(serum protease that dissolves fibrin clots BIOL 533 Lecture 9BIOL 533 16 Lecture 9 Mechanism of Action • Examples: – Streptococci • Some secrete – Hyaluronidase—breaks down hyaluronic acid (connective tissue) – DNase—thins out pus made viscous by DNA from dead white blood cell – Streptokinase (protease)—cleaves precursor of plasminogen activator to active form » Converts plasminogen to plasmin (serum protease that dissolves fibrin clots)