Evidence map›Paper›PMID 20804452›Full record

ArticleMolecular microbiology2010

The conformation of a nascent polypeptide inside the ribosome tunnel affects protein targeting and protein folding.

Janine H Peterson, Cheryl A Woolhead, Harris D Bernstein

Open access · greenAbstract read
In one paragraph

Article in Molecular microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Remodelled ribosomal populations synthesize a specific proteome in proliferating plant tissue during cold.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  2. Article
  3. Review
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  5. Cotranslational Biogenesis of Membrane Proteins in Bacteria.Frontiers in molecular biosciences · 2022
    Review
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  17. Article
  18. Free energy of nascent-chain folding in the translocon.Journal of the American Chemical Society · 2011
    Article
  19. Protein folding in the cell: challenges and progress.Current opinion in structural biology · 2011
    Review
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 2 institutions in 2 countries.

Janine H PetersonGenetics and Biochemistry Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0538, USA.
Cheryl A Woolhead
Harris D Bernstein
National Institutes of Health · USUniversity of Glasgow · GB

Funding

Translational regulation in the ribosome tunnelZIADK052036 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI BERNSTEIN, HARRIS · 2009 to 2013
$1.6M
Biotechnology and Biological Sciences Research Council BB/G011281Biotechnology and Biological Sciences Research Council BB/G011281/1Intramural NIH HHS ZIA DK052036
6 · The paper itself

Abstract

In this report, we describe insights into the function of the ribosome tunnel that were obtained through an analysis of an unusual 25 residue N-terminal motif (EspP(1-25) ) associated with the signal peptide of the Escherichia coli EspP protein. It was previously shown that EspP(1-25) inhibits signal peptide recognition by the signal recognition particle, and we now show that fusion of EspP(1-25) to a cytoplasmic protein causes it to aggregate. We obtained two lines of evidence that both of these effects are attributable to the conformation of EspP(1-25) inside the ribosome tunnel. First, we found that mutations in EspP(1-25) that abolished its effects on protein targeting and protein folding altered the cross-linking of short nascent chains to ribosomal components. Second, we found that a mutation in L22 that distorts the tunnel mimicked the effects of the EspP(1-25) mutations on protein biogenesis. Our results provide evidence that the conformation of a polypeptide inside the ribosome tunnel can influence protein folding under physiological conditions and suggest that ribosomal mutations might increase the solubility of at least some aggregation-prone proteins produced in E. coli.

Indexed as

Protein FoldingProtein Sorting SignalsAmino Acid SequenceEscherichia coliEscherichia coli ProteinsMolecular Sequence DataMutationProtein BiosynthesisProtein MultimerizationProtein Structure, SecondaryRibosomal ProteinsRibosomesRNA-Binding ProteinsSerine EndopeptidasesEscherichia coli ProteinsEspP protein, E coliProtein Sorting SignalsRibosomal ProteinsRNA-Binding ProteinsrplV protein, E coliSerine Endopeptidases

Identifiers

PMID20804452
PMCPMC2950912
OpenAlexW1926917643

What OpenQuestion holds

Textmetadata
LicenceTDM
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.