Anti-SPINK1 antibodies are used in the immunodetection of the protein serine peptidase inhibitor Kazal type 1. In humans, the canonical protein has a reported length of 79 amino acid residues and a mass of 8.5 kDa. It has been described to be a secreted protein. It is notably expressed in many tissues, such as the appendix and colon. SPINK1 is a type of serine protease inhibitor which exhibits anti-trypsin activity. The SPINK1 gene has been associated with the disease, Pancreatitis. Synonyms for this target antigen include PSTI, Spink3, TATI, TCP, serine protease inhibitor Kazal-type 1, and PCTT. SPINK1 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. A number of SPINK1 antibodies have been mentioned in research publications and have associated citations. Immunohistochemistry is a widely used application for these antibodies. Western Blot and Immunofluorescence are also common applications.