Evidence map›Paper›PMID 23663846›Full record

ArticleBiophysical journal2013

Helical structure determines different susceptibilities of dsDNA, dsRNA, and tsDNA to counterion-induced condensation.

Alexei A Kornyshev, Sergey Leikin

Abstract read
In one paragraph

Article in Biophysical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. DNA Persistent Length in Solutions of Different pH.International journal of molecular sciences · 2025
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. DNA under Force: Mechanics, Electrostatics, and Hydration.Nanomaterials (Basel, Switzerland) · 2015
    Review
  12. Article
  13. Why double-stranded RNA resists condensation.Nucleic acids research · 2014
    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

2 authors.

Alexei A KornyshevDepartment of Chemistry, Imperial College London, London, United Kingdom.
Sergey Leikin

Funding

Recognition and self-assembly of DNA aggregatesZIAHD000257 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI LEIKIN, SERGEY · 2009 to 2014
$321k
6 · The paper itself

Abstract

Recent studies of counterion-induced condensation of nucleic acid helices into aggregates produced several puzzling observations. For instance, trivalent cobalt hexamine ions condensed double-stranded (ds) DNA oligomers but not their more highly charged dsRNA counterparts. Divalent alkaline earth metal ions condensed triple-stranded (ts) DNA oligomers but not dsDNA. Here we show that these counterintuitive experimental results can be rationalized within the electrostatic zipper model of interactions between molecules with helical charge motifs. We report statistical mechanical calculations that reveal dramatic and nontrivial interplay between the effects of helical structure and thermal fluctuations on electrostatic interaction between oligomeric nucleic acids. Combining predictions for oligomeric and much longer helices, we also interpret recent experimental studies of the role of counterion charge, structure, and chemistry. We argue that an electrostatic zipper attraction might be a major or even dominant force in nucleic acid condensation.

Indexed as

Base SequenceCations, DivalentCobaltDNADNA, B-FormMethenamineNucleotide MotifsOligodeoxyribonucleotidesRNA, Double-StrandedStatic ElectricityCations, DivalentCobaltDNADNA, B-FormMethenamineOligodeoxyribonucleotidesRNA, Double-Strandedtriplex DNA

Identifiers

PMID23663846
PMCPMC3647158

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.