Evidence map›Paper›PMID 20354151›Full record

ArticleRNA (New York, N.Y.)2010

Binding and release of the 6S transcriptional control RNA.

Lindsay Shephard, Neil Dobson, Peter J Unrau

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

  1. RNA (New York, N.Y.) · 2022
    Article
  2. Article
  3. Ms1 RNA Interacts With the RNA Polymerase Core inFrontiers in microbiology · 2022
    Article
  4. Review
  5. Article
  6. Article
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  9. Review
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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

3 authors at 1 institution in 1 country.

Lindsay ShephardDepartment of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
Neil Dobson
Peter J Unrau
Simon Fraser University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

6S RNA is an important noncoding RNA that regulates eubacterial transcription. In Escherichia coli this RNA binds to the sigma(70) RNA polymerase holoenzyme and is released by the synthesis of a short product RNA. In order to determine how binding and release are controlled by the 6S RNA sequence, we used in vitro selection to screen a high diversity library containing approximately 4 x 10(12) sequences for functional 6S RNA variants. Residues critical for binding were found to be located in a "-35" region upstream of the 6S RNA transcription bubble mimic structure. Mutating these phylogenetically conserved residues invariably led to decreases in binding and removing them abolished binding, implicating these nucleotides in a biologically important interaction with the Esigma(70) complex. Interestingly, mutation of phylogenetically conserved "-10" residues that were also upstream of the site of pRNA synthesis was found to influence 6S RNA release rates in addition to modulating -35 binding. These results indicate how 6S RNA -35 binding to sigma(70) RNA polymerase holoenzyme can regulate expression from "strong" and "weak" -35 DNA promoters and suggest that 6S RNA release rates have been fine tuned over evolutionary time so as to correctly regulate cellular levels of transcription.

Indexed as

Base SequenceBinding SitesConsensus SequenceConserved SequenceDNA-Directed RNA PolymerasesEscherichia coli K12Evolution, MolecularGene LibraryKineticsModels, BiologicalModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedNucleic Acid ConformationPhylogenyPromoter Regions, Genetic6S RNADNA-Directed RNA PolymerasesRNA, BacterialRNA polymerase sigma 70RNA, UntranslatedSigma Factor

Identifiers

PMID20354151
PMCPMC2856883
OpenAlexW2156763510

What OpenQuestion holds

Textmetadata
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.