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The effect of different SAM concentrations on (a) the fraction of the compact nucleosome state (the fractions of the unmethylated and methylated samples are statistically different from each other with p-value < 0.02 using a t-test); and (b) the conformations of the two nucleosomal states. Data points: mean ± 1σ, nunmet = 28, nmet = 21. The sample contains 10 mM KCl and 0 mM MgCl2.
