Alpha 2-antiplasmin
（重定向自Plasmin inhibitor）
![](/Images/godic/202502/03/2R9Y3023.png")
![](/Images/godic/202502/03/PBB_GE_SERPINF2_205075_at_tn3023.png")
![Fibrinolysis (simplified). Blue arrows denote stimulation, and red arrows inhibition.](/Images/godic/202502/03/Fibrinolysis3023.png")
Alpha 2-antiplasmin (or α2-antiplasmin or plasmin inhibitor) is a serine protease inhibitor (serpin) responsible for inactivating plasmin, an important enzyme that participates in fibrinolysis and degradation of various other proteins. This protein is encoded by the SERPINF2 gene.