Further studies identified other associations with different HLA loci independently of the DRB1*1501: the allele HLA-DRB1*0301 and the allele HLA-DRB1*1303, which confer an MS risk, and the protective allele HLA-A*0201 and a variant that tags HLA-DPB1*0301 [29]. The gene discussed is HLA-DRB1; the disease is myeloid sarcoma.