Listed are ELISA Kits for the detection of HD21, an alias name of SSX family member 2. The human protein, encoded by the gene SSX2, is 188 amino acid residues long and has a mass of 21,620 daltons. However, there are up to 2 reported isoforms. It is a member of the SSX family. This protein is reported to have a nuclear cellular localization. This target may also be known as: protein SSX2, cancer/testis antigen 5.2, cancer/testis antigen family 5 member 2a, sarcoma synovial X-chromosome-related 2, CT5.2, CT5.2A, and HD21.