Anti-contactin associated protein-like 3 antibodies enable researchers to detect and measure the contactin associated protein-like 3 antigen in biological samples. This target is a reported synonym of the CNTNAP3 gene, which encodes contactin associated protein family member 3. This protein is known to function in cell adhesion, among other biological roles. The human version of contactin associated protein-like 3 has a canonical amino acid length of 1288 residues and a protein mass of 140.7 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane and is secreted of cells. This target antigen may also be known as contactin-associated protein-like 3.