The Human Leukocyte Antigen (HLA) complex is the human version of the MHC, helping the immune system distinguish the body's own proteins versus those from foreign invaders, such as viruses. Humans have three main MHC class I genes, known as HLA-A, HLA-B and HLA-C. Major histocompatibility complex (MHC) class I molecules, which are widely found on the surface of nucleated cells, function by binding peptides and displaying them on the cell surface to cytotoxic T-cells. Intracellular degradation of cytosolic proteins by the proteasome generates many of the peptides that load MHC class I molecules. MHC class I may also serve as an inhibitory ligand for natural killer (NK) cell receptors (KIR, Killer Immunoglobulin-like Receptors), which viruses may modulate expression levels for to evade immune detection. The G46-2.6 monoclonal antibody binds to a monomorphic epitope on the alpha chain of HLA-A, HLA-B and HLA-C.
The antibody was conjugated to BD Horizon™ BV510 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 405-nm and Em Max at 510-nm, BD Horizon BV510 can be excited by the violet laser and detected in the BD Horizon V500 (525/50-nm) filter set. BD Horizon BV510 conjugates are useful for the detection of dim markers off the violet laser.