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. Author manuscript; available in PMC: 2016 May 9.
Published in final edited form as: Nat Rev Genet. 2009 Mar;10(3):161–172. doi: 10.1038/nrg2522

Figure 4. Sequence-based packing versus statistical packing.

Figure 4

a | Individual slots represent nucleosome positioning sequences that define where a nucleosome (grey circle) will reside on a length of DNA. b | In its purest form, statistical positioning relies on a single positional barrier (left side), against which nucleosomes are ordered. A probabilistic density trace of where nucleosomes would reside in a population is shown. c | The true cellular state is likely to be a combination of both independent and statistical positioning.