Anti-CD257 antibodies enable researchers to detect and measure the CD257 antigen in biological samples. This target is a reported synonym of the TNFSF13B gene, which encodes TNF superfamily member 13b. This protein is known to function in B cell differentiation and signal transduction pathways, among other biological roles. The human version of CD257 has a canonical amino acid length of 285 residues and a protein mass of 31.2 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane and is secreted of cells. Other names for this target antigen include BAFF, BAFF, and BLYS. Some CD257 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.