In fact, Garcia-Vives et al [15], Radice et al [16], Qin et al [17] and Hofstra et al [18] noted that SLE patients with membranous lupus nephritis (MLN) had anti-PLA2R Ab at frequencies of 5.3%, 5.4%, 5% and 5%, respectively. The gene discussed is PLA2R1; the disease is systemic lupus erythematosus.