Evidence map›Paper›PMID 26202971›Full record

ArticleNucleic acids research2015

G-quadruplex formation in double strand DNA probed by NMM and CV fluorescence.

Alex Kreig, Jacob Calvert, Janet Sanoica, Emily Cullum, Ramreddy Tipanna, Sua Myong

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

50 citing papers in PubMed, 100 citations in OpenAlex.

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  9. Position-Dependent Effects of AP Sites Within anInternational journal of molecular sciences · 2025
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  11. Special Issue "Bioinformatics of Unusual DNA and RNA Structures".International journal of molecular sciences · 2024
    Article
  12. Article
  13. Article
  14. International journal of molecular sciences · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. A Structural Potential of Rare Trinucleotide Repeat Tracts in RNA.International journal of molecular sciences · 2022
    Article
  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

6 authors at 3 institutions in 3 countries.

Alex KreigBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA.
Jacob CalvertBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA.
Janet SanoicaBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA.
Emily CullumBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA.
Ramreddy TipannaBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA.
Sua MyongBioengineering Department, University of Illinois; 1304 W. Springfield Ave. Urbana, IL 61801, USA Biophysics and Computational Biology; 1110 W. Green St. Urbana, IL 61801, USA Institute for Genomic Biology; 1206 Gregory Drive, Urbana, IL 61801, USA Physics Frontier Center (Center of Physics for Living Cells), University of Illinois; 1110 W. Green St. Urbana, IL 61801, USA smyong@illinois.edu.
Urbana University · USUniversity of Illinois Urbana-Champaign · USCenter for Genomic Science · IT

Funding

Quantitative Stepwise Analysis of RNA InterferenceDP2GM105453 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI MYONG, SUA · 2012 to 2012
$2.4M
Mechanisms of Telomeric DNA Loss and RepairR01ES015052 · NIEHS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI OPRESKO, PATRICIA L · 2006 to 2010
$2.4M
The Role of Structural Dynamics on Telomeric End AccessibilityF30CA174323 · NCI · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI HWANG, HELEN · 2013 to 2015
$135k
NCCDPHP CDC HHS 343 NIH 1 DP2 GM105453 ANIEHS NIH HHS R01 ES015052NIGMS NIH HHS DP2 GM105453
6 · The paper itself

Abstract

G-quadruplexes (GQs) are alternative DNA secondary structures that can form throughout the human genome and control the replication and transcription of important regulatory genes. Here, we established an ensemble fluorescence assay by employing two GQ-interacting compounds, N-methyl mesoporphyrin IX (NMM) and Crystal Violet (CV). This enables quantitative measurement of the GQ folding propensity and conformation specificity in both single strand (ss) and double strand (ds) DNA. Our GQ mapping indicates that the likelihood of GQ formation is substantially diminished in dsDNA, likely due to the competition from the Watson-Crick base pairing. Unlike GQ folding sequence in ssDNA which forms both parallel and antiparallel GQs, dsDNA displays only parallel folding. Additionally, we employed single molecule FRET to obtain a direct quantitation of stably formed-, weakly folded and unfolded GQ conformations. The findings of this study and the method developed here will enable identifying and classifying potential GQ-forming sequences in human genome.

Indexed as

Fluorescent DyesGentian VioletG-QuadruplexesMesoporphyrinsDNADNA, Single-StrandedFluorescenceFluorescence Resonance Energy TransferDNADNA, Single-StrandedFluorescent DyesGentian VioletMesoporphyrinsN-methylmesoporphyrin IX

Identifiers

PMID26202971
PMCPMC4652765
OpenAlexW1960314762

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.