Anti-FAP1 antibodies are protein reagents that detect specific antigens. The FAP1 antigen is another term for the human protein protein tyrosine phosphatase non-receptor type 13, encoded by the PTPN13 gene. The protein is reported to be a tyrosine phosphatase, which regulates negatively FAS-induced apoptosis and NGFR-mediated pro-apoptotic signaling. Canonically, it has an amino acid length of 2485 residues and a mass of 276.9 kilodaltons. Its subcellular localization is in the nucleus and cytoplasm and it is reported to be expressed in keratinocytes. The FAP1 protein is a member of the Protein-tyrosine phosphatase protein family. Other alias names for FAP1 include PNP1 and PTP-BAS. ELISA, Western Blot, and Immunohistochemistry are common applications for FAP1 antibodies.