Cases of myositis associated with anti-SRP and anti-HMGCR autoantibodies, in contrast, are classified as necrotizing autoimmune myopathy; and cases of myositis associated with Jo-1, PL-7 and PL-12 autoantibodies are classified as antisynthetase syndrome associated myositis [7, 8]. This evidence concerns the gene UCN2 and myositis disease.