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Role of Histone Tails in Structural Stability of the Nucleosome

Journal Article · · PLoS Computational Biology (Online)
 [1];  [2];  [3];  [4]
  1. Univ. of Heidelberg (Germany). Interdisciplinary Center for Scientific Computing (IWR). Computational Molecular Biophysics; DOE/OSTI
  2. German Cancer Research Center (DKFZ), Heidelberg (Germany). Biophysics of Macromolecules
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Molecular Biophysics
  4. German Cancer Research Center (DKFZ), Heidelberg (Germany). Biophysics of Macromolecules
Histone tails play an important role in nucleosome structure and dynamics. Here we investigate the effect of truncation of histone tails H3, H4, H2A and H2B on nucleosome structure with 100 ns all-atom molecular dynamics simulations. Tail domains of H3 and H2B show propensity of α-helics formation during the intact nucleosome simulation. On truncation of H4 or H2B tails no structural change occurs in histones. However, H3 or H2A tail truncation results in structural alterations in the histone core domain, and in both the cases the structural change occurs in the H2Aα3 domain. We also find that the contacts between the histone H2A C terminal docking domain and surrounding residues are destabilized upon H3 tail truncation. The relation between the present observations and corresponding experiments is discussed.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
German Research Foundation (DFG); USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1627219
Journal Information:
PLoS Computational Biology (Online), Journal Name: PLoS Computational Biology (Online) Journal Issue: 12 Vol. 7; ISSN 1553-7358
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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The effect of epigenetic modifications on the secondary structures and possible binding positions of the N-terminal tail of histone H3 in the nucleosome: a computational study journal March 2017
A Comprehensive View of the Epigenetic Landscape. Part II: Histone Post-translational Modification, Nucleosome Level, and Chromatin Regulation by ncRNAs journal December 2014
The Role of Histone Tails in the Nucleosome: A Computational Study journal December 2014
Speed of Conformational Change: Comparing Explicit and Implicit Solvent Molecular Dynamics Simulations journal March 2015
Nucleosome Core Particle Disassembly and Assembly Kinetics Studied Using Single-Molecule Fluorescence journal October 2015
High precision FRET studies reveal reversible transitions in nucleosomes between microseconds and minutes journal November 2018
Shearing of the CENP-A dimerization interface mediates plasticity in the octameric centromeric nucleosome journal November 2015
Distinct Roles of Histone H3 and H2A Tails in Nucleosome Stability journal August 2016
Histone H2A variants in nucleosomes and chromatin: more or less stable? journal September 2012
Structure and dynamics of DNA loops on nucleosomes studied with atomistic, microsecond-scale molecular dynamics journal April 2016
Histone H2A variants confer specific properties to nucleosomes and impact on chromatin accessibility journal June 2018
Mechanical evolution of DNA double-strand breaks in the nucleosome journal January 2018
Jörg Langowski: his scientific legacy and the future it promises journal July 2018
Free energy profiles for unwrapping the outer superhelical turn of nucleosomal DNA journal March 2018
Two Arginine Residues Suppress the Flexibility of Nucleosomal DNA in the Canonical Nucleosome Core journal March 2015
CENP ‐C unwraps the human CENP ‐A nucleosome through the H2A C‐terminal tail journal September 2019
Genotoxic and cytotoxic potential of whole plant extracts of Kalanchoe laciniata by Ames and MTT assay text January 2017
Free energy profile for unwrapping outer superhelical turn of CENP-A nucleosome journal January 2019
Reading, writing, and repair: the role of ubiquitin and the ubiquitin-like proteins in DNA damage signaling and repair journal January 2013
Regulation of the DNA damage response by ubiquitin conjugation journal March 2015
Histone Acetylation as a Regenerative Target in the Dentine-Pulp Complex journal February 2020
Histone Tail Dynamics in Partially Disassembled Nucleosomes During Chromatin Remodeling journal November 2019
Epigenetic Modulation of Stem Cells in Neurodevelopment: The Role of Methylation and Acetylation journal February 2017
Identification and Characterization of Switchgrass Histone H3 and CENH3 Genes journal July 2016
Contribution of histone N-terminal tails to the structure and stability of nucleosomes journal January 2013
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Chasing Tails: Cathepsin-L Improves Structural Analysis of Histones by HX-MS*[S] journal October 2019
Dynamics of the nucleosomal histone H3 N-terminal tail revealed by high precision single-molecule FRET journal January 2020
Histone Tail Dynamics in Partially Disassembled Nucleosomes During Chromatin Remodeling journal January 2019
CENP-C unwraps the CENP-A nucleosome through the H2A C-terminal tail posted_content January 2019
Causes and consequences of epigenetic regulation in wound healing: Epigenetic alteration in wound healing journal May 2014
Modulation of nucleosomal DNA accessibility via charge-altering post-translational modifications in histone core journal March 2018
Molecular mechanism of histone variant H2A.B on stability and assembly of nucleosome and chromatin structures journal July 2020
An Advanced Coarse-Grained Nucleosome Core Particle Model for Computer Simulations of Nucleosome-Nucleosome Interactions under Varying Ionic Conditions journal February 2013
Histone H3 Lysine 56 Acetylation Is Required for Formation of Normal Levels of Meiotic DNA Breaks in S. cerevisiae journal January 2020

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