DDX20 and myopathy: Furthermore, the myopathy-specific autoantibody profile highlighted elevated levels of anti-SMN as well as anti-Gemin3 antibodies in scurfy sera (Figure 3C), whereas antibodies against Jo-1, PM/Scl, Mup44/NT5c1A (14), RUVBL1/2 (15) as detected by ALBIA were not significantly increased (Table 2).