https://www.ncbi.nlm.nih.gov/Structure/pdb/4U1N
4U1N: HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1...
Beta-2-microglobulinHLA class I histocompatibility antigen, B-42 alpha chainProtein Nef1,2-ETHANEDIOLGLYCEROL
hla class i