Nucleosome Switching

Details Nucleosome Switching Nucleosome Switching

2007-12-06

arxiv.org/abs/0712.1063v1

Physics

Condensed Matter

Soft Condensed Matter

15 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.100.228105

We present a statistical-mechanical analysis of the positioning of nucleosomes along one of the chromosomes of yeast DNA as a function of the strength of the binding potential and of the chemical potential of the nucleosomes. We find a significant density of two-level nucleosome switching regions where, as a function of the chemical potential, the nucleosome distribution undergoes a "micro" first-order transition. The location of these nucleosome switches shows a strong correlation with the location of transcription-factor binding sites.

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