Alpha-2-antiplasmin is an alias for the gene, Serpin peptidase inhibitor, clade F (alpha-2 antiplasmin, pigment epithelium derived factor), member 2, in humans. Other names include: Alpha-2-antiplasmin; Alpha-2-plasmin inhibitor; Alpha-2-PI; Serpin F2; Alpha-2-AP; A2AP; AAP; API; PLI. The encoded protein has an amino acid length of 491 and a mass of 54.6 kDa. Alpha-2-antiplasmin is a member of the Serpin family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.