Anti-CAAP antibodies enable researchers to detect and measure the CAAP antigen in biological samples. This target is a reported synonym of the CAAP1 gene, which encodes caspase activity and apoptosis inhibitor 1. This protein is known to function in the apoptotic pathway, among other biological roles. The human version of CAAP has a canonical amino acid length of 361 residues and a protein mass of 38.4 kilodaltons, although 2 isoforms have been identified.