Anti-CTLA3 antibodies enable researchers to detect and measure the CTLA3 antigen in biological samples. This target is a reported synonym of the GZMA gene, which encodes granzyme A. This protein is known to function in the apoptotic pathway and immune response pathways, among other biological roles. The human version of CTLA3 has a canonical amino acid length of 262 residues and a protein mass of 29 kilodaltons. It is reported to be localized in the cytoplasm and is secreted of cells and notably expressed in the tonsil, spleen, lymph node, bone marrow, and appendix. This target antigen may also be known as HFSP. Western Blot is the most common application for the CTLA3 antibodies listed below. ELISA and Immunohistochemistry are also common applications.