Anti-DDR antibodies are protein reagents that detect specific antigens. The DDR antigen is another term for the human protein discoidin domain receptor tyrosine kinase 1, encoded by the DDR1 gene. The protein is reported to be a tyrosine kinase that functions as cell surface receptor for fibrillar collagen and regulates cell attachment to the extracellular matrix, remodeling of the extracellular matrix, cell migration, differentiation, survival and cell proliferation. Canonically, it has an amino acid length of 913 residues and a mass of 101.1 kilodaltons. Its subcellular localization is in the cell membrane and is secreted. It is notably expressed in T-47D, MDA-MB-175 and HBL-100 breast carcinoma cells, A-431 epidermoid carcinoma cells, SW48 and SNU-C2B colon carcinoma cells and Hs 294T melanoma cells. The DDR protein is a member of the Tyr protein kinase protein family. Other alias names for DDR include CAK and CD167. Western Blot is the most common application for the DDR antibodies listed below. ELISA and Immunohistochemistry are also common applications.