Contrarily, C/C homozygotes for BAFF-2704 and carriers of SNP rs3759467 in the 5′ regulatory region of BAFF gene who received rituximab for the treatment of anti-neutrophil cytoplasmic antibody (ANCA) vasculitis were more frequently resistant to rituximab [90]. The gene discussed is TNFSF13B; the disease is vasculitis.