the catalytic efficiency for plasminogen activation of rtcu-pa-32k/ma-15c5-f ( ab ' ) 2/t is 4,000-fold lower than that of rtcu-pa-32k/ma-15c5-f ( ab ' ) 2/p , but its concentration required for 50 percent lysis in 2 hours of a 125i-fibrin labeled plasma clot in human plasma ( c50 ) is only 25-fold higher .
C0015982
fibrin
C0032105
plasma