Evidence map›Paper›PMID 29714686›Full record

ArticleeLife2018

Oligomerization of a molecular chaperone modulates its activity.

Tomohide Saio, Soichiro Kawagoe, Koichiro Ishimori, Charalampos G Kalodimos

Open access · goldAbstract read
In one paragraph

Article in eLife, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. Article
  3. CaNature cell biology · 2025
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  4. Article
  5. Article
  6. Article
  7. Review
  8. Structural features of chloroplast trigger factor determined at 2.6 Å resolution.Acta crystallographica. Section D, Structural biology · 2022
    Article
  9. Article
  10. Review
  11. Article
  12. Frontiers in microbiology · 2022
    Article
  13. Update on the Protein Homeostasis Network inFrontiers in microbiology · 2022
    Review
  14. Review
  15. Article
  16. Article
  17. The Dynamic SecYEG Translocon.Frontiers in molecular biosciences · 2021
    Review
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 2 countries.

Tomohide SaioDepartment of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan.
Soichiro KawagoeGraduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan.
Koichiro IshimoriDepartment of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan.
Charalampos G KalodimosDepartment of Structural Biology, St. Jude Children's Research Hospital, Memphis, United States.ORCID https://orcid.org/0000-0001-6354-2796
Hokkaido University · JPSt. Jude Children's Research Hospital · US

Funding

Bacillus subtilis Stress ResponsesR35GM122461 · NIGMS · CORNELL UNIVERSITY · PI John D Helmann · 2017 to 2026
$7.6M
Structure and functional mechanisms of molecular chaperones and protein kinasesR35GM122462 · NIGMS · UNIVERSITY OF MINNESOTA · PI CHARALAMPOS KALODIMOS · 2017 to 2026
$6.8M
Allosteric and Transport Mechanisms in TonB-dependent TransportersR01AI121858 · NIAID · UNIVERSITY OF MINNESOTA · PI KALODIMOS, CHARALAMPOS · 2016 to 2020
$2.1M
NIAID NIH HHS R01 AI121858NIGMS NIH HHS GM122461NIGMS NIH HHS GM122462NIGMS NIH HHS R35 GM122462
6 · The paper itself

Abstract

Molecular chaperones alter the folding properties of cellular proteins via mechanisms that are not well understood. Here, we show that Trigger Factor (TF), an ATP-independent chaperone, exerts strikingly contrasting effects on the folding of non-native proteins as it transitions between a monomeric and a dimeric state. We used NMR spectroscopy to determine the atomic resolution structure of the 100 kDa dimeric TF. The structural data show that some of the substrate-binding sites are buried in the dimeric interface, explaining the lower affinity for protein substrates of the dimeric compared to the monomeric TF. Surprisingly, the dimeric TF associates faster with proteins and it exhibits stronger anti-aggregation and holdase activity than the monomeric TF. The structural data show that the dimer assembles in a way that substrate-binding sites in the two subunits form a large contiguous surface inside a cavity, thus accounting for the observed accelerated association with unfolded proteins. Our results demonstrate how the activity of a chaperone can be modulated to provide distinct functional outcomes in the cell.

Indexed as

Protein MultimerizationBinding SitesEscherichia coliEscherichia coli ProteinsMolecular ChaperonesPeptidylprolyl IsomeraseProtein BindingProtein ConformationProtein FoldingEscherichia coli ProteinsMolecular ChaperonesPeptidylprolyl Isomerasetrigger factor, E coliE. colimolecular biophysicsmolecular chaperonesNMR Spectroscopyprotein foldingstructural biology

Identifiers

PMID29714686
PMCPMC5988418
OpenAlexW2800950868

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.