Idiopathic membranous nephropathy is an autoimmune glomerular disease caused by circulating autoantibodies against glomerular podocyte antigens (M-type phospholipase A2 receptor PLA2R and type 1 thrombospondin domain-containing 7A THSD7A). This evidence concerns the gene THSD7A and idiopathic membranous glomerulonephritis.