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Interactions Between Nucleosomes: From Atomistic Simulation to Polymer Model.


ABSTRACT: The organization of genomes in space and time dimension plays an important role in gene expression and regulation. Chromatin folding occurs in a dynamic, structured way that is subject to biophysical rules and biological processes. Nucleosomes are the basic unit of chromatin in living cells, and here we report on the effective interactions between two nucleosomes in physiological conditions using explicit-solvent all-atom simulations. Free energy landscapes derived from umbrella sampling simulations agree well with recent experimental and simulation results. Our simulations reveal the atomistic details of the interactions between nucleosomes in solution and can be used for constructing the coarse-grained model for chromatin in a bottom-up manner.

SUBMITTER: Zhang C 

PROVIDER: S-EPMC8072053 | biostudies-literature |

REPOSITORIES: biostudies-literature

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