The autoantibody profile of P-ANCA-positive SLE patients is presented in Figure 2B. All were ANA positive (28/28), with the vast majority having anti-dsDNA antibodies (in 21/25, 75%) and anti-Ro60/SSA autoantibodies (in 14/28, 50%). This evidence concerns the gene RO60 and systemic lupus erythematosus.