Figure 3. Packing domains and nucleosome accessibility.

Same SR-EV configuration displayed on Figure 2, but colored by the coordination number of each nucleosome. A) Full configuration reveals the spacial dispersity of packing domains in red, consistent with heterochromatic region, intercalated with low coordinated, accesible regions. B) 50 nm slab cut at the center of the configuration displaying details of the system heterogeneity and transition from packing domains to the intermediate, low coordinated, region. Note the white nucleosomes (CN ∼ 6) at the periphery of the packing domains.