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Histograms of the distances between (A) XP(P), (B) PP(X), (C) +X(+), (D) XP(X), (E) +X(W), and (F) XP(W) motifs and the 3′ end of inverse toeprints obtained in the presence of Ery. Both Ery replicates (Ery1 and Ery2) were combined for this analysis. Calculated pause strengths are shown for each motif.
