Plat is a symbol for the gene, Plasminogen activator, tissue, in humans. Other names include: Tissue-type plasminogen activator; t-PA; t-plasminogen activator; tPA; Alteplase; Reteplase. The encoded protein is an enzyme with an amino acid length of 562 and a mass of 62.9 kDa. Other isoforms may exist. Plat is a member of the Peptidase S1 family. This gene shares homology with other species, including: Mouse, Rat.