Description: This B1.23.2 monoclonal antibody recognizes the human Human Leukocyte Antigens (HLA) B and C. Along with HLA-A, these proteins correspond to MHC Class I in humans. HLA-B and HLA-C are expressed on nearly all cell types and heterodimerize with beta-2 microglobulin at the cell surface. These molecular complexes play a critical role in the presentation of endoplasmic reticulum-derived peptides to immune cells. The antibody has been shown to inhibit binding of KIR2DL1 and LIR1.