Anti-FAK antibodies are protein reagents that detect specific antigens. The FAK antigen is another term for the human protein protein tyrosine kinase 2, encoded by the PTK2 gene. The protein is known to function in angiogenesis and axon guidance, among other biological roles. Canonically, it has an amino acid length of 1052 residues and a mass of 119.2 kilodaltons. and it is notably expressed in B and T-lymphocytes. The FAK protein is a member of the Tyr protein kinase protein family. Other alias names for FAK include FADK and FADK 1. Over 260 citations in the literature describe the use of FAK antibodies in research. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.