Evidence map›Paper›PMID 34584096›Full record

ArticleNature communications2021

Supercoiling and looping promote DNA base accessibility and coordination among distant sites.

Jonathan M Fogg, Allison K Judge, Erik Stricker, Hilda L Chan, Lynn Zechiedrich

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. DNA topological regulation in RNA polymerase II transcription.Cellular & molecular biology letters · 2026
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Nanoscale Interaction of Endonuclease APE1 with DNA.International journal of molecular sciences · 2024
    Article
  15. Structural basis of DNA crossover capture byScience (New York, N.Y.) · 2024
    Article
  16. Article
  17. Article
  18. Non-canonical DNA structures in the human ribosomal DNA.Histochemistry and cell biology · 2023
    Review
  19. Article
  20. 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 1 institution in 1 country.

Jonathan M FoggDepartment of Molecular Virology and Microbiology, Houston, TX, USA.
Allison K JudgeVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Houston, TX, USA.ORCID 0000-0003-4289-1748
Erik StrickerDepartment of Molecular Virology and Microbiology, Houston, TX, USA.ORCID 0000-0003-2112-2202
Hilda L ChanGraduate Program in Immunology and Microbiology, Houston, TX, USA.
Lynn ZechiedrichDepartment of Molecular Virology and Microbiology, Houston, TX, USA. elz@bcm.edu.ORCID 0000-0003-0533-1637
Baylor College of Medicine · US

Funding

S2: Molecular Mechanisms Underlying Fluoroquinolone Susceptibility and ResistanceR01GM115501 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI ZECHIEDRICH, LYNN · 2015 to 2018
$1.7M
Combatting Antimicrobial ResistanceR56AI054830 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI ZECHIEDRICH, LYNN · 2014 to 2014
$394k
NIAID NIH HHS R56 AI054830NIGMS NIH HHS R01 GM115501
6 · The paper itself

Abstract

DNA in cells is supercoiled and constrained into loops and this supercoiling and looping influence every aspect of DNA activity. We show here that negative supercoiling transmits mechanical stress along the DNA backbone to disrupt base pairing at specific distant sites. Cooperativity among distant sites localizes certain sequences to superhelical apices. Base pair disruption allows sharp bending at superhelical apices, which facilitates DNA writhing to relieve torsional strain. The coupling of these processes may help prevent extensive denaturation associated with genomic instability. Our results provide a model for how DNA can form short loops, which are required for many essential processes, and how cells may use DNA loops to position nicks to facilitate repair. Furthermore, our results reveal a complex interplay between site-specific disruptions to base pairing and the 3-D conformation of DNA, which influences how genomes are stored, replicated, transcribed, repaired, and many other aspects of DNA activity.

Indexed as

Base PairingDNA CleavageDNA RepairDNA, SuperhelicalEndodeoxyribonucleasesGenomic InstabilityModels, ChemicalModels, GeneticStress, MechanicalDNA, SuperhelicalEndodeoxyribonucleasesexonuclease Bal 31

Identifiers

PMID34584096
PMCPMC8478907
OpenAlexW3203686241

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.