Anti-FAP69 antibodies enable researchers to detect and measure the FAP69 antigen in biological samples. This target is a reported synonym of the CFAP69 gene, which encodes cilia and flagella associated protein 69. This protein is known to function in the sensory perception of smell, among other biological roles. The human version of FAP69 has a canonical amino acid length of 941 residues and a protein mass of 105.9 kilodaltons, although 5 isoforms have been identified. It is reported to be localized in the cell projections of cells.