
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Thrombin-activatable fibrinolysis inhibitor
Introduction
Thrombin-activatable fibrinolysis inhibitor (TAFI), also known as plasma carboxypeptidase B2 is a recently described plasma zymogen that, when exposed to the thrombin–thrombomodulin complex, is converted by proteolysis at Arg92 to a basic carboxypeptidase (TAFIa or activated TAFI) that inhibits fibrinolysis.
TAFI is produced by the liver.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
