Evidence map›Paper›PMID 17478520›Full record

ArticleNucleic acids research2007

On the stability of peptide nucleic acid duplexes in the presence of organic solvents.

Anjana Sen, Peter E Nielsen

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Responsive Nucleic Acid-Based Organosilica Nanoparticles.Journal of the American Chemical Society · 2023
    Article
  6. Article
  7. Modeling Peptide Nucleic Acid Binding Enthalpies Using MM-GBSA.The journal of physical chemistry. B · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Molecular computing by PNA:PNA duplex formation.Artificial DNA, PNA & XNA · 2011
    Article
  18. Review
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 at 1 institution in 1 country.

Anjana SenDepartment of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, The Panum Institute, Blegdamsvej 3c, DK-2200 Copenhagen N, Denmark.
Peter E Nielsen
University of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleic acid double helices are stabilized by hydrogen bonding and stacking forces (a combination of hydrophobic, dispersive and electrostatic forces) of the base pairs in the helix. One would predict the hydrogen bonding contributions to increase and the stacking contributions to decrease as the water activity in the medium decreases. Study of nucleobase paired duplexes in the absence of water and ultimately in pure aprotic, non-polar organic solvents is not possible with natural phosphodiester nucleic acids due to the ionic phosphate groups and the associated cations, but could be possible with non-ionic nucleic acid analogues or mimics such as peptide nucleic acids. We now report that peptide nucleic acid (PNA) (in contrast to DNA) duplexes show almost unaffected stability in up to 70% dimethylformamide (DMF) or dioxane, and extrapolation of the data to conditions of 100% organic solvents indicates only minor (or no) destabilization of the PNA duplexes. Our data indicate that stacking forces contribute little if at all to the duplex stability under these conditions. The differences in behaviour between the PNA and the DNA duplexes are attributed to the differences in hydration and counter ion release rather than to the differences in nucleobase interaction. These results support the possibility of having stable nucleobase paired double helices in organic solvents.

Indexed as

Base Pair MismatchDimethylformamideDioxanesDNANucleic Acid DenaturationPeptide Nucleic AcidsSolventsThermodynamicsThymine1,4-dioxaneDimethylformamideDioxanesDNAPeptide Nucleic AcidsSolventsThymine

Identifiers

PMID17478520
PMCPMC1904262
OpenAlexW2048520720

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.