HLA- ABC Monoclonal Antibody [Bu8]HLA ABC Monoclonal Antibody [Bu8] is a mouse monoclonal antibody. HLA ABC Monoclonal Antibody [Bu8] is validated for applications, including: ICC IF & Flow Cyt. HLA class I major histocompatibility (MHC) antigens are intrinsic membrane glycoproteins expressed on nucleated cells and noncovalently associated with an invariant beta2 microglobulin. They carry foreign determinants important for immune recognition by cytotoxic T cells, thus important for