Anti-PGC antibodies are used in the immunodetection of the protein progastricsin. In humans, the canonical protein has a reported length of 388 amino acid residues and a mass of 42.4 kDa. It has been described to be a secreted protein. Up to 2 different isoforms have been reported for this protein. It is notably expressed in the stomach. A member of the Peptidase A1 protein family, PGC is known to be involved with proteolysis. Synonyms for this target antigen include PGII, gastricsin, pepsin C, pepsinogen C, pepsinogen group II, preprogastricsin, and PEPC. PGC gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. A number of PGC antibodies have been mentioned in research publications and have associated citations. ELISA is a widely used application for these antibodies. Western Blot and Immunohistochemistry are also common applications.