Anti-PTPRJ antibodies are used in the immunodetection of the protein protein tyrosine phosphatase receptor type J. In humans, the canonical protein has a reported length of 1337 amino acid residues and a mass of 145.9 kDa. Its subcellular localization is in the cell membrane. It is notably expressed in many tissues, such as the bone marrow, tonsil, and appendix. A member of the Protein-tyrosine phosphatase protein family, PTPRJ is reported to be a tyrosine phosphatase, which dephosphorylates or contributes to the dephosphorylation of CTNND1, FLT3, PDGFRB, MET, KDR, LYN, SRC, MAPK1, MAPK3, EGFR, TJP1, OCLN, PIK3R1 and PIK3R2. Synonyms for this target antigen include DEP1, HPTP eta, HPTPeta, R-PTP-ETA, R-PTP-J, SCC1, receptor-type tyrosine-protein phosphatase eta, and CD148. PTPRJ gene orthologs have been reported in the mouse, rat, bovine, chimpanzee and chicken species. Over 60 citations in the literature describe the use of PTPRJ antibodies in research. Western Blot is a widely used application for these antibodies. Flow Cytometry and Immunohistochemistry are also common applications.