Anti-BJ-TSA-9 antibodies enable researchers to detect and measure the BJ-TSA-9 antigen in biological samples. This target is a reported synonym of the FAM83A gene, which encodes family with sequence similarity 83 member A. This protein is known to function in cell proliferation, among other biological roles. The human version of BJ-TSA-9 has a canonical amino acid length of 434 residues and a protein mass of 47.5 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cytoplasm of cells. BJ-TSA-9 is a member of the FAM83 protein family.