Anti-carboxypeptidase a1 antibodies are used for the immunodetection of the protein encoded by the CPA1 gene. In humans, the canonical protein has a reported length of 419 amino acid residues and a mass of 47.1 kDa. It is known to be a secreted protein. A member of the Peptidase M14 protein family, it is a reported carboxypeptidase that catalyzes the release of a C-terminal amino acid, but has little or no action with -Asp, -Glu, -Arg, -Lys or -Pro. Other names for this target antigen include carboxypeptidase A1 (pancreatic), pancreatic carboxypeptidase A, and CPA. Gene orthologs have been identified in the mouse, rat, bovine and chimpanzee species. A number of carboxypeptidase a1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.