Anti-CEA cell adhesion molecule 4 antibodies are used for the immunodetection of the protein encoded by the CEACAM4 gene. In humans, the canonical protein has a reported length of 244 amino acid residues and a mass of 25.9 kDa. Its subcellular localization is in the membrane. A member of the CEA protein family, it is known to be involved with signal transduction pathways. Post-translational modifications have been described, including N-glycosylation and phosphorylation. Other names for this target antigen include CGM7_HUMAN, NCA, carcinoembryonic antigen-related cell adhesion molecule 4, Nonspecific cross-reacting antigen (NCA), and CGM7. Gene orthologs have been identified in the mouse and chimpanzee species.