Source:http://linkedlifedata.com/resource/umls/id/C0062832
NCI: HLA-BW4 antigen is the public epitope associated with the sequence of amino acid residues at positions 77-83 in the alpha one domain of the HLA class I heavy chain. These epitopes exist on proteins encoded by certain alleles of both the human HLA-B gene and the human HLA-A gene.