Anti-PRAT4A antibodies enable researchers to detect and measure the PRAT4A antigen in biological samples. This target is a reported synonym of the CNPY3 gene, which encodes canopy FGF signaling regulator 3. This protein is known to function in innate immune responses, among other biological roles. The human version of PRAT4A has a canonical amino acid length of 278 residues and a protein mass of 30.7 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the ER of cells. Other names for this target antigen include CAG4A, DEE60, and EIEE60.