Anti-CD158B1 antibodies enable researchers to detect and measure the CD158B1 antigen in biological samples. This target is a reported synonym of the KIR2DL2 gene, which encodes killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 2. This protein is a known receptor on natural killer (NK) cells for HLA-Cw1, 3, 7, and 8 allotypes. The human version of CD158B1 has a canonical amino acid length of 348 residues and a protein mass of 38.5 kilodaltons. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include CD158b and NKAT-6.