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Effects of poly(dA-dT) elements on position-dependent equilibrium accessibilities of nucleosomal DNA target sites. Results for poly(dA-dT)-containing constructs are determined relative to those for reference construct 601.2, which were measured on an absolute scale (2). See Fig. 1 for nucleosomal locations of the different restriction sites. Open bars, 601.2 reference; shaded bars, 601.3(A16End); hatched bars, 601.3(A16Mid). Note the log scale for Keqconf.
