Evidence map›Paper›PMID 21998294›Full record

ArticleNucleic acids research2012

Topological constraints impair RNA polymerase II transcription and causes instability of plasmid-borne convergent genes.

María L García-Rubio, Andrés Aguilera

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Article
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  4. Article
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  7. Article
  8. Review
  9. Review
  10. Article
  11. Transcription and recombination: when RNA meets DNA.Cold Spring Harbor perspectives in biology · 2014
    Review
  12. Article
  13. Supercoiling in DNA and chromatin.Current opinion in genetics & development · 2014
    Review
  14. Article
  15. Article
  16. 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 at 1 institution in 1 country.

María L García-RubioCentro Andaluz de Biología Molecular y Medicina Regenerativa CABIMER, Universidad de Sevilla-CSIC, Av. Américo Vespucio s/n 41092 Sevilla, and Departamento de Genética, Universidad de Sevilla, 41012 Sevilla, Spain.
Andrés Aguilera
Centro Andaluz de Biología Molecular y Medicina Regenerativa · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the theoretical bases for the association of topoisomerases and supercoiling changes with transcription and replication, our knowledge of the impact of topological constraints on transcription and replication is incomplete. Although mutation of topoisomerases affects expression and stability of the rDNA region it is not clear whether the same is the case for RNAPII transcription and genome integrity in other regions. We developed new assays in which two convergent RNAPII-driven genes are transcribed simultaneously. Plasmid-based systems were constructed with and without a transcription terminator between the two convergent transcription units, so that the impact of transcription interference could also be evaluated. Using these assays we show that Topos I and II play roles in RNAPII transcription in vivo and reduce the stability of RNAPII-transcribed genes in Saccharomyces cerevisiae. Supercoiling accumulation in convergent transcription units impairs RNAPII transcription in top1Δ strains, but Topo II is also required for efficient transcription independent of Topo I and of detectable supercoiling accumulation. Our work shows that topological constraints negatively affect RNAPII transcription and genetic integrity, and provides an assay to study gene regulation by transcription interference.

Indexed as

Transcription, GeneticDNA, SuperhelicalDNA Topoisomerases, Type IDNA Topoisomerases, Type IIMutationPhenotypePlasmidsRecombination, GeneticRNA Polymerase IISaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTerminator Regions, GeneticDNA, SuperhelicalDNA Topoisomerases, Type IDNA Topoisomerases, Type IIRNA Polymerase IISaccharomyces cerevisiae Proteins

Identifiers

PMID21998294
PMCPMC3273821
OpenAlexW2117173640

What OpenQuestion holds

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LicenceCC BY-NC
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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.