Plasminogen
Plasmin (PLN) is a serine protease which is involved in degradation of fibrin clots. PLN is released as the zymogen plasminogen (PLG) which is converted to the active PLN by a variety of enzymes. PLN cleavage produces angiostatin. PLN domains are: N-terminal, C-terminal serine protease catalytic domain and 5 kringle domains of ca. 80 residues.