Evidence map›Paper›PMID 19494042›Full record

ArticleMolecular biology of the cell2009

The exosome associates cotranscriptionally with the nascent pre-mRNP through interactions with heterogeneous nuclear ribonucleoproteins.

Viktoria Hessle, Petra Björk, Marcus Sokolowski, Ernesto González de Valdivia, Rebecca Silverstein, Konstantin Artemenko, Anu Tyagi, Gianluca Maddalo, Leopold Ilag, Roger Helbig and 2 more

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed, 38 citations in OpenAlex.

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  15. mRNA quality control goes transcriptional.Biochemical Society transactions · 2013
    Review
  16. Article
  17. Article
  18. Dis3- and exosome subunit-responsive 3' mRNA instability elements.Biochemical and biophysical research communications · 2012
    Article
  19. Review
  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

12 authors at 2 institutions in 1 country.

Viktoria HessleDepartment of Molecular Biology and Functional Genomics, Stockholm University, SE-10691 Stockholm, Sweden.
Petra Björk
Marcus Sokolowski
Ernesto González de Valdivia
Rebecca Silverstein
Konstantin Artemenko
Anu Tyagi
Gianluca Maddalo
Leopold Ilag
Roger Helbig
Roman A Zubarev
Neus Visa
Stockholm University · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eukaryotic cells have evolved quality control mechanisms to degrade aberrant mRNA molecules and prevent the synthesis of defective proteins that could be deleterious for the cell. The exosome, a protein complex with ribonuclease activity, is a key player in quality control. An early quality checkpoint takes place cotranscriptionally but little is known about the molecular mechanisms by which the exosome is recruited to the transcribed genes. Here we study the core exosome subunit Rrp4 in two insect model systems, Chironomus and Drosophila. We show that a significant fraction of Rrp4 is associated with the nascent pre-mRNPs and that a specific mRNA-binding protein, Hrp59/hnRNP M, interacts in vivo with multiple exosome subunits. Depletion of Hrp59 by RNA interference reduces the levels of Rrp4 at transcription sites, which suggests that Hrp59 is needed for the exosome to stably interact with nascent pre-mRNPs. Our results lead to a revised mechanistic model for cotranscriptional quality control in which the exosome is constantly recruited to newly synthesized RNAs through direct interactions with specific hnRNP proteins.

Indexed as

AnimalsBlotting, WesternCell LineCells, CulturedChironomidaeChromosomesDrosophila melanogasterDrosophila ProteinsExosomesHeterogeneous-Nuclear RibonucleoproteinsImmunoprecipitationMicroscopy, ConfocalMicroscopy, ImmunoelectronProtein BindingProtein PrecursorsRibonucleoproteinsDrosophila ProteinsHeterogeneous-Nuclear RibonucleoproteinsProtein PrecursorsRibonucleoproteinsRNA-Binding ProteinsRrp4 protein, Drosophilarump protein, Drosophila

Identifiers

PMID19494042
PMCPMC2719564
OpenAlexW2011950694

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.