EPA, or TIMP metallopeptidase inhibitor 1, is a human gene encoded by TIMP1. It may also be known as: Metalloproteinase inhibitor 1; Fibroblast collagenase inhibitor; Collagenase inhibitor; Tissue inhibitor of metalloproteinases 1; TIMP-1; Erythroid-potentiating activity; CLGI; TIMP. The encoded protein has an amino acid length of 207 and a mass of 23.2 kDa. EPA is a member of the Protease inhibitor I35 (TIMP) family. Homologs of this gene exist in other organisms, including: Fly, Rat.