Homozygosity of ERAP1 p.Arg725Gln was more likely to develop BD in HLA-B51 positive individuals than in HLA-B51 negative cases (OR=3.78, 95% CI=1.94-7.35 vs OR=1.48, 95% CI=0.78-2.80) (44). The gene discussed is ERAP1; the disease is Behcet disease.