2 Learn How - Streptococcal plasminogen activator, triggers the activation of the human contact system. http://2learnhow.com/story.php?title=streptococcal-plasminogen-activator-triggers-the-activation-of-the-human-contact-system--3 Streptococcal plasminogen activator, triggers the activation of the human contact system. Activation of contact system factors at the surface of the Streptococcus pyogenes serotype M49 is dependent on streptokinase and plasminogen. Our results also show that secreted streptokinase is an efficient contact system activator, independent from a contact surface. This results in the processing of high-m Thu, 08 Apr 2021 02:57:49 UTC en