Anti-CEACAM21 antibodies are used in the immunodetection of the protein CEA cell adhesion molecule 21. In humans, the canonical protein has a reported length of 293 amino acid residues and a mass of 32.4 kDa. Its subcellular localization is in the membrane. Up to 3 different isoforms have been reported for this protein. It is a member of the CEA protein family. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include carcinoembryonic antigen related cell adhesion molecule 21, and carcinoembryonic antigen-related cell adhesion molecule 21. Western Blot is the most common application for the CEACAM21 antibodies listed below. ELISA and Immunohistochemistry are also common applications.