Evidence map›Paper›PMID 26101261›Full record

ArticleNucleic acids research2015

Transcription blockage by stable H-DNA analogs in vitro.

Shristi Pandey, Anna M Ogloblina, Boris P Belotserkovskii, Nina G Dolinnaya, Marianna G Yakubovskaya, Sergei M Mirkin, Philip C Hanawalt

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 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Binding and stabilizating effect of RNA triplex poly(U)⋅poly(A)*poly(U) by enantiomers of ruthenium(II) polypyridyl complex [Ru(bpy)Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2023
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  11. Biophysical insights into the interaction of two enantiomers of Ru(II) complex [Ru(bpy)Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2020
    Article
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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

7 authors at 4 institutions in 2 countries.

Shristi PandeyDepartment of Biology, Stanford University, Stanford, CA 94305, USA.
Anna M OgloblinaBlokhin Cancer Research Center RAMS, Moscow, Russia.
Boris P BelotserkovskiiDepartment of Biology, Stanford University, Stanford, CA 94305, USA.
Nina G DolinnayaDepartment of Chemistry, Lomonosov Moscow State University, Moscow, Russia.
Marianna G YakubovskayaBlokhin Cancer Research Center RAMS, Moscow, Russia.
Sergei M MirkinDepartment of Biology, Tufts University, Medford, MA 02155, USA.
Philip C HanawaltDepartment of Biology, Stanford University, Stanford, CA 94305, USA hanawalt@stanford.edu.
Russian Cancer Research Center NN Blokhin · RUStanford University · USLomonosov Moscow State University · RUTufts University · US

Funding

Mutations Arising During DNA RepairP01GM105473 · NIGMS · BRANDEIS UNIVERSITY · PI LOVETT, SUSAN THOMAS · 2014 to 2018
$8.6M
Role of transcription in genomic stabilityR01CA077712 · NCI · STANFORD UNIVERSITY · PI HANAWALT, PHILIP COURTLAND · 1998 to 2016
$5.6M
NCI NIH HHS CA07712NCI NIH HHS R01 CA077712NIGMS NIH HHS GM105473NIGMS NIH HHS P01 GM105473
6 · The paper itself

Abstract

DNA sequences that can form unusual secondary structures are implicated in regulating gene expression and causing genomic instability. H-palindromes are an important class of such DNA sequences that can form an intramolecular triplex structure, H-DNA. Within an H-palindrome, the H-DNA and canonical B-DNA are in a dynamic equilibrium that shifts toward H-DNA with increased negative supercoiling. The interplay between H- and B-DNA and the fact that the process of transcription affects supercoiling makes it difficult to elucidate the effects of H-DNA upon transcription. We constructed a stable structural analog of H-DNA that cannot flip into B-DNA, and studied the effects of this structure on transcription by T7 RNA polymerase in vitro. We found multiple transcription blockage sites adjacent to and within sequences engaged in this triplex structure. Triplex-mediated transcription blockage varied significantly with changes in ambient conditions: it was exacerbated in the presence of Mn(2+) or by increased concentrations of K(+) and Li(+). Analysis of the detailed pattern of the blockage suggests that RNA polymerase is sterically hindered by H-DNA and has difficulties in unwinding triplex DNA. The implications of these findings for the biological roles of triple-stranded DNA structures are discussed.

Indexed as

Transcription, GeneticCations, DivalentCations, MonovalentDNADNA-Directed RNA PolymerasesMetalsNucleic Acid ConformationViral Proteinsbacteriophage T7 RNA polymeraseCations, DivalentCations, MonovalentDNADNA-Directed RNA PolymerasesMetalstriplex DNAViral Proteins

Identifiers

PMID26101261
PMCPMC4538819
OpenAlexW2104455764

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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.