Anti-leukocyte immunoglobulin like receptor A3 antibodies are used for the immunodetection of the protein encoded by the LILRA3 gene. In humans, the canonical protein has a reported length of 439 amino acid residues and a mass of 47.5 kDa. It is known to be a secreted protein. Alternative splicing is reported to yield 3 different isoforms for this protein. It is notably expressed in B-cells, and at lower levels in natural killer (NK) cells. It is known to act as soluble receptor for class I MHC antigens. Post-translational modifications have been described, including N-glycosylation. Other names for this target antigen include HM31, HM43, ILT-6, ILT6, LIR-4, LIR4, leukocyte immunoglobulin-like receptor subfamily A member 3, and CD85E. Gene orthologs have been identified in the mouse, rat and chimpanzee species. Some leukocyte immunoglobulin like receptor A3 antibodies may have been used in research and have associated citations. ELISA is a widely used application for these antibodies. In addition, Western Blot is also a common application.