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Position-dependent equilibrium constants for site exposure (Keqconf) for the three DNA constructs, plotted on a log scale. 601.3, 601.3a, and 601.3b are represented by clear, shaded, and diagonally striped bars, respectively. Values for Keqconf range over 2 orders of magnitude at the sites probed yet are essentially invariant with addition of 55 or 105 bp of DNA beyond the end of the nucleosome.
