alpha(2)-Plasmin Inhibitor

A member of the serpin superfamily found in Plasma that inhibits the lysis of Fibrin clots which are induced by Plasminogen Activator. It is a Glycoprotein, Molecular Weight approximately 70,000 that migrates in the alpha 2 region in Immunoelectrophoresis. It is the principal Plasmin inactivator in Blood, rapidly forming a very stable complex with Plasmin.