NCIt synonyms : Histocompatibility Antigen; Human Leukocyte Antigen Complex; Major Histocompatibility Complex; HLA; Human Leukocyte Antigen Family; Human Leukocyte Antigen; HLA Family; MHC;
NCIt definition : A family of proteins that are essential for the presentation of peptide antigens on
cell surfaces that modulate the host defensive activities of T-cells. This protein
family includes major histocompatibility complex (MHC) class I and class II proteins.;