FIG. 3.

Electrophoretic analysis of replication intermediates for pYES derivatives carrying various (GAA)_n · (TTC)_n repeats. (A) Primary electrophoretic data. Plasmids were named according to the repetitive sequence in the lagging strand template. Arrows show replication stall sites. (B) Quantitative analysis of Y-arcs for plasmids carrying (GAA)_n · (TTC)_n repeats. The analyzed portion of the Y-arc is marked by arrowheads in Fig. 1B. Peaks on densitograms correspond to bulges on the Y-arcs shown in Fig. 2A.