Evidence map›Paper›PMID 25487346›Full record

ArticleScientific reports2014

Sequence dependence of electron-induced DNA strand breakage revealed by DNA nanoarrays.

Adrian Keller, Jenny Rackwitz, Emilie Cauët, Jacques Liévin, Thomas Körzdörfer, Alexandru Rotaru, Kurt V Gothelf, Flemming Besenbacher, Ilko Bald

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

10 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Lab-on-a-DNA origami: nanoengineered single-molecule platforms.Chemical communications (Cambridge, England) · 2023
    Review
  5. Article
  6. DNA nanostructures: A versatile lab-bench for interrogating biological reactions.Computational and structural biotechnology journal · 2019
    Review
  7. Review
  8. Article
  9. Article
  10. 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

9 authors at 4 institutions in 3 countries.

Adrian Keller1] Interdisciplinary Nanoscience Center (iNANO) and Danish National Research Foundation: Centre for DNA Nanotechnology (CDNA), Aarhus University, 8000 Aarhus C, Denmark [2] Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.
Jenny RackwitzInstitute of Chemistry - Physical Chemistry, University of Potsdam, Potsdam, Germany.
Emilie CauëtUniversité Libre de Bruxelles, 1050 Brussels, Belgium.
Jacques LiévinUniversité Libre de Bruxelles, 1050 Brussels, Belgium.
Thomas KörzdörferInstitute of Chemistry - Physical Chemistry, University of Potsdam, Potsdam, Germany.
Alexandru RotaruCenter of Advanced Research in Bionanoconjugates and Biopolymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.
Kurt V GothelfInterdisciplinary Nanoscience Center (iNANO) and Danish National Research Foundation: Centre for DNA Nanotechnology (CDNA), Aarhus University, 8000 Aarhus C, Denmark.
Flemming BesenbacherInterdisciplinary Nanoscience Center (iNANO) and Danish National Research Foundation: Centre for DNA Nanotechnology (CDNA), Aarhus University, 8000 Aarhus C, Denmark.
Ilko Bald1] Interdisciplinary Nanoscience Center (iNANO) and Danish National Research Foundation: Centre for DNA Nanotechnology (CDNA), Aarhus University, 8000 Aarhus C, Denmark [2] Institute of Chemistry - Physical Chemistry, University of Potsdam, Potsdam, Germany [3] BAM Federal Institute of Materials Research and Testing, Berlin, Germany.
University of Potsdam · DEAarhus University · DKUniversité Libre de Bruxelles · BEDanish National Research Foundation · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The electronic structure of DNA is determined by its nucleotide sequence, which is for instance exploited in molecular electronics. Here we demonstrate that also the DNA strand breakage induced by low-energy electrons (18 eV) depends on the nucleotide sequence. To determine the absolute cross sections for electron induced single strand breaks in specific 13 mer oligonucleotides we used atomic force microscopy analysis of DNA origami based DNA nanoarrays. We investigated the DNA sequences 5'-TT(XYX)3TT with X = A, G, C and Y = T, BrU 5-bromouracil and found absolute strand break cross sections between 2.66 · 10(-14) cm(2) and 7.06 · 10(-14) cm(2). The highest cross section was found for 5'-TT(ATA)3TT and 5'-TT(ABrUA)3TT, respectively. BrU is a radiosensitizer, which was discussed to be used in cancer radiation therapy. The replacement of T by BrU into the investigated DNA sequences leads to a slight increase of the absolute strand break cross sections resulting in sequence-dependent enhancement factors between 1.14 and 1.66. Nevertheless, the variation of strand break cross sections due to the specific nucleotide sequence is considerably higher. Thus, the present results suggest the development of targeted radiosensitizers for cancer radiation therapy.

Indexed as

Oligonucleotide Array Sequence AnalysisDNADNA BreaksElectronsDNA

Identifiers

PMID25487346
PMCPMC4260214
OpenAlexW2094995837

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.