Evidence map›Paper›PMID 18424499›Full record

ArticleBiophysical journal2008

DNA overstretching in the presence of glyoxal: structural evidence of force-induced DNA melting.

Leila Shokri, Micah J McCauley, Ioulia Rouzina, Mark C Williams

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Single-molecule mechanochemical characterization of E. coli pol III core catalytic activity.Protein science : a publication of the Protein Society · 2017
    Article
  5. Review
  6. Article
  7. Dynamic Release of Bending Stress in Short dsDNA by Formation of a Kink and Forks.Angewandte Chemie (International ed. in English) · 2015
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. An effective mesoscopic model of double-stranded DNA.Journal of biological physics · 2014
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Tension induces a base-paired overstretched DNA conformation.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  20. Two distinct overstretched DNA structures revealed by single-molecule thermodynamics measurements.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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

4 authors at 2 institutions in 1 country.

Leila ShokriDepartment of Physics, Northeastern University, Boston, Massachusetts 02115, USA.
Micah J McCauley
Ioulia Rouzina
Mark C Williams
Northeastern University · USUniversity of Minnesota · US

Funding

Single Molecule HIV-1 Replication InteractionsR01GM072462 · NIGMS · NORTHEASTERN UNIVERSITY · PI WILLIAMS, MARK C · 2004 to 2018
$3.9M
NIGMS NIH HHS GM 072462NIGMS NIH HHS R01 GM072462
6 · The paper itself

Abstract

When a long DNA molecule is stretched beyond its B-form contour length, a transition occurs in which its length increases by a factor of 1.7, with very little force increase. A quantitative model was proposed to describe this transition as force-induced melting, where double-stranded DNA is converted into single-stranded DNA. The force-induced melting model accurately describes the thermodynamics of DNA overstretching as a function of solution conditions and in the presence of DNA binding ligands. An alternative explanation suggests a transformation into S-DNA, a double-stranded form which preserves the interstrand base pairing. To determine the extent to which DNA base pairs are exposed to solution during the transition, we held DNA overstretched to different lengths within the transition in the presence of glyoxal. If overstretching involved strand separation, then force-melted basepairs would be glyoxal-modified, thus essentially permanently single-stranded. Subsequent stretches confirm that a significant fraction of the DNA melted by force is permanently melted. This result demonstrates that DNA overstretching is accompanied by a disruption of the DNA helical structure, including a loss of hydrogen bonding.

Indexed as

Models, ChemicalModels, MolecularComputer SimulationDNAElasticityGlyoxalNucleic Acid ConformationNucleic Acid DenaturationStress, MechanicalTransition TemperatureDNAGlyoxal

Identifiers

PMID18424499
PMCPMC2479620
OpenAlexW2062061353

What OpenQuestion holds

Textmetadata
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.