Anti-CST9 antibodies are used in the immunodetection of the protein cystatin 9. In humans, the canonical protein has a reported length of 159 amino acid residues and a mass of 18.1 kDa. It has been described to be a secreted protein. It is found to be expressed in the heart, placenta, lung, liver, skeletal muscle and pancreas. A member of the Cystatin protein family, CST9 is suspected to be involved in testis development (By similarity). Synonyms for this target antigen include cystatin-like molecule and testatin. Western Blot is the most common application for the CST9 antibodies listed below. Immunofluorescence and Immunohistochemistry are also common applications.