958510.fig.003
Figure 3: Expansion detection by Southern Blot Analysis. Lanes 1 and 2 are DNA Molecular Weight Marker, (VII and VIII, resp., Roche Diagnostics). Results for DM1 affected individuals are shown in lanes 3, 5, 8, and 10. Results for DM1 unaffected individuals are shown in lanes 4, 6, 7, 9, and 11, but three of these are homozygous normal (lanes 4, 7, and 9), confirmed by TP-PCR.