Evidence map›Paper›PMID 27454815›Full record

ArticleJournal of the American Chemical Society2016

Promiscuous Histone Mis-Assembly Is Actively Prevented by Chaperones.

Haiqing Zhao, David Winogradoff, Minh Bui, Yamini Dalal, Garegin A Papoian

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. CENP-A Regulation and Cancer.Frontiers in cell and developmental biology · 2022
    Review
  5. Review
  6. Article
  7. Article
  8. Chiral Systems Made from DNA.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Review
  9. Epigenetic regulation of centromere function.Cellular and molecular life sciences : CMLS · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Reexamining the origin of the directionality of myosin V.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  18. Review
  19. Silencing ofJournal of Cancer · 2017
    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 at 2 institutions in 1 country.

Haiqing ZhaoLaboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States.
David Winogradoff
Minh BuiLaboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States.
Yamini DalalLaboratory of Receptor Biology and Gene Expression, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States.
Garegin A Papoian
National Institutes of Health · USNational Cancer Institute · US

Funding

Role of histone variants in aging and cancerZIABC011206 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DALAL, YAMINI P · 2009 to 2025
$10.4M
Biomechanical properties of chromatin in cancer and normal cellsZIABC011207 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DALAL, YAMINI P · 2009 to 2025
$8.8M
Intramural NIH HHS ZIA BC011206
6 · The paper itself

Abstract

Histone proteins are essential for the organization, expression, and inheritance of genetic material for eukaryotic cells. A centromere-specific H3 histone variant, centromere protein A (CENP-A), shares about 50% amino acid sequence identity with H3. CENP-A is required for packaging the centromere and for the proper separation of chromosomes during mitosis. Despite their distinct biological functions, previously reported crystal structures of the CENP-A/H4 and H3/H4 dimers reveal a high degree of similarity. In this work, we characterize the structural dynamics of CENP-A/H4 and H3/H4 dimers based on a dual-resolution approach, using both microsecond-scale explicit-solvent all-atom and coarse-grained (CG) molecular dynamics (MD) simulations. Our data show that the H4 histone is significantly more rigid compared with the H3 histone and its variant CENP-A, hence, serving as a reinforcing structural element within the histone core. We report that the CENP-A/H4 dimer is significantly more dynamic than its canonical counterpart H3/H4, and our results provide a physical explanation for this flexibility. Further, we observe that the centromere-specific chaperone Holliday Junction Recognition Protein (HJURP) stabilizes the CENP-A/H4 dimer by forming a specific electrostatic interaction network. Finally, replacing CENP-A S68 with E68 disrupts the binding interface between CENP-A and HJURP in all-atom MD simulation, and consistently, in vivo experiments demonstrate that replacing CENP-A S68 with E68 disrupts CENP-A's localization to the centromere. Based on all our results, we propose that, during the CENP-A/H4 deposition process, the chaperone HJURP protects various substructures of the dimer, serving both as a folding and binding chaperone.

Indexed as

Centromere Protein ADNA-Binding ProteinsHeLa CellsHistonesHumansMolecular Dynamics SimulationProtein FoldingProtein MultimerizationProtein Structure, QuaternarySubstrate SpecificityCentromere Protein ADNA-Binding ProteinsHistonesHJURP protein, human

Identifiers

PMID27454815
PMCPMC7757119
OpenAlexW2495057506

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.