Anti-CGP-39 antibodies are protein reagents that detect specific antigens. The CGP-39 antigen is another term for the human protein chitinase 3 like 1, encoded by the CHI3L1 gene. The protein is known to function in the apoptotic pathway and carbohydrate metabolism and homeostasis, among other biological roles. Canonically, it has an amino acid length of 383 residues and a mass of 42.6 kilodaltons. Its subcellular localization is in the ER, cytoplasm, and is secreted. The CGP-39 protein is a member of the Glycosyl hydrolase 18 protein family. Other alias names for CGP-39 include ASRT7 and GP-39. Western Blot is a widely used application for the CGP-39 antibodies listed below. In addition, Immunohistochemistry is also a common application.