Similar to our findings, both the PTPN22 rs2476601 and CTLA4 rs3087243 risk variants were shown to be susceptibility loci for autoimmune diseases including anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and autoimmune polyglandular autoimmunity (35, 36). The gene discussed is CTLA4; the disease is anti-neutrophil cytoplasmic antibody-associated vasculitis.