Listed are ELISA Kits for the detection of cystatin 9 (testatin), an alias name of cystatin 9. The human protein, encoded by the gene CST9, is 159 amino acid residues long and has a mass of 18,135 daltons. It is a member of the Cystatin family. This protein is reported to have a secreted cellular localization. This target may also be known as: cystatin-like molecule, CLM, and CTES7A.