Anti-CPNE2 antibodies are used in the immunodetection of the protein copine 2. In humans, the canonical protein has a reported length of 548 amino acid residues and a mass of 61.2 kDa. Its subcellular localization is in the cell membrane, nucleus, and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is reported to be expressed in the brain. It is a member of the Copine protein family. Synonyms for this target antigen include copine II. CPNE2 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Immunofluorescence is the most common application for the CPNE2 antibodies listed below. Western Blot, Immunocytochemistry, and Immunohistochemistry are also common applications.