Evidence map›Paper›PMID 28135276›Full record

ArticlePLoS computational biology2017

Binding of DNA-bending non-histone proteins destabilizes regular 30-nm chromatin structure.

Gaurav Bajpai, Ishutesh Jain, Mandar M Inamdar, Dibyendu Das, Ranjith Padinhateeri

Abstract read
In one paragraph

Article in PLoS computational biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Article
  2. The shifting paradigm of chromatin structure: from the 30-nm chromatin fiber to liquid-like organization.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2025
    Review
  3. Review
  4. Article
  5. Regulation of Chromatin Architecture by Transcription Factor Binding.bioRxiv : the preprint server for biology · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Physical Nature of Chromatin in the Nucleus.Cold Spring Harbor perspectives in biology · 2021
    Review
  12. Article
  13. Article
  14. Review
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Gaurav BajpaiDepartment of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
Ishutesh JainDepartment of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
Mandar M InamdarDepartment of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, India.
Dibyendu DasDepartment of Physics, Indian Institute of Technology Bombay, Mumbai, India.
Ranjith PadinhateeriDepartment of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Why most of the in vivo experiments do not find the 30-nm chromatin fiber, well studied in vitro, is a puzzle. Two basic physical inputs that are crucial for understanding the structure of the 30-nm fiber are the stiffness of the linker DNA and the relative orientations of the DNA entering/exiting nucleosomes. Based on these inputs we simulate chromatin structure and show that the presence of non-histone proteins, which bind and locally bend linker DNA, destroys any regular higher order structures (e.g., zig-zag). Accounting for the bending geometry of proteins like nhp6 and HMG-B, our theory predicts phase-diagram for the chromatin structure as a function of DNA-bending non-histone protein density and mean linker DNA length. For a wide range of linker lengths, we show that as we vary one parameter, that is, the fraction of bent linker region due to non-histone proteins, the steady-state structure will show a transition from zig-zag to an irregular structure-a structure that is reminiscent of what is observed in experiments recently. Our theory can explain the recent in vivo observation of irregular chromatin having co-existence of finite fraction of the next-neighbor (i + 2) and neighbor (i + 1) nucleosome interactions.

Indexed as

Binding SitesChromatinChromosomal Proteins, Non-HistoneComputer SimulationDNADNA-Binding ProteinsElastic ModulusModels, ChemicalModels, MolecularNucleic Acid ConformationProtein BindingProtein ConformationChromatinChromosomal Proteins, Non-HistoneDNADNA-Binding Proteins

Identifiers

PMID28135276
PMCPMC5305278

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.