HLA class II histocompatibility antigen, DR Gene HLA-DR UniProt # P01903/P01911 Link to correct Uniprot 1# https://www.uniprot.org/uniprotkb/P01903/entry Link to correct Uniprot 2# https://www.uniprot.org/uniprotkb/P01911/entry CD antigen HLA-DR