Patent ID: 7470519

Claim:
A method for detecting active thrombin activatable fibrinolytic inhibitor (TAFIa) or inactive thrombin activatable fibrinolytic inhibitor (TAFIai), but not a 60 kD proenzyme form of thrombin activatable fibrinolytic inhibitor (TAFI) or a N-terminal activation peptide of TAFI, in a sample, said method comprising: (i) contacting said sample with a potato carboxypeptidase inhibitor (PTCI) under conditions that permit binding of PTCI to TAFIa or TAFIai; and (ii) detecting the presence of a TAFIa/PTCI complex or a TAFIai/PTCI complex, wherein the TAFIa, or TAFIai or PTCI is immobilized on a solid support.