Figure 2.

Ψ₀-dependent array conformations before twisting. (a) Proportions of negative (orange), open (green) and positive (blue) nucleosome states and (b) rate constants of transitions across the three states as a function of Ψ₀. For all Ψ₀, k_PO are significantly larger than the axis limit and k_OP are essentially zero within SD. (c) Proposed energy landscape showing the free energies of the three nucleosome states and the barriers in between for three different regimes of Ψ₀ as a function of nucleosomal linking number. (d) Array writhe Wr_S (RH and LH refer to right- and left-handed arrays) and (e) extension z₀ as a function of Ψ₀. Error bars in all plots indicate SD.