Anti-CTTN antibodies are used in the immunodetection of the protein cortactin. In humans, the canonical protein has a reported length of 550 amino acid residues and a mass of 61.6 kDa. Its subcellular localization is in the cytoplasm. Up to 3 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. CTTN is said to contribute to the organization of the actin cytoskeleton and cell shape. Synonyms for this target antigen include src substrate cortactin, 1110020L01Rik, amplaxin, ems1 sequence (mammary tumor and squamous cell carcinoma-associated (p80/85 src substrate), epididymis secretory sperm binding protein, and EMS1. CTTN gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Over 110 citations in the literature describe the use of CTTN antibodies in research. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.