Evidence map›Paper›PMID 22445172›Full record

ArticleCell2012

ATP-triggered conformational changes delineate substrate-binding and -folding mechanics of the GroEL chaperonin.

Daniel K Clare, Daven Vasishtan, Scott Stagg, Joel Quispe, George W Farr, Maya Topf, Arthur L Horwich, Helen R Saibil

Abstract read
In one paragraph

Article in Cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed
–field-weighted citation impact
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

96 citing papers in PubMed.

  1. Article
  2. Article
  3. Improving Conformational Ensembles of Folded Proteins in Go̅Martini.Journal of chemical theory and computation · 2026
    Article
  4. Article
  5. Biomolecular NMR assignments · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Structural basis of substrate progression through the bacterial chaperonin cycle.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

36 more citing papers are in PubMed but not listed here.

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

8 authors.

Daniel K ClareCrystallography and Institute of Structural and Molecular Biology, Birkbeck College, University of London, Malet Street, London WC1E 7HX, UK.
Daven Vasishtan
Scott Stagg
Joel Quispe
George W Farr
Maya Topf
Arthur L Horwich
Helen R Saibil

Funding

WORKSHOPS AND TRAININGP41RR017573 · NCRR · SCRIPPS RESEARCH INSTITUTE, THE · PI CARRAGHER, BRIDGET OLIVIA · 2002 to 2011
$14.2M
Biotechnology and Biological Sciences Research CouncilHoward Hughes Medical InstituteMedical Research Council G0600084NCRR NIH HHS P41 RR017573Wellcome Trust 070776Wellcome Trust 089050
6 · The paper itself

Abstract

The chaperonin GroEL assists the folding of nascent or stress-denatured polypeptides by actions of binding and encapsulation. ATP binding initiates a series of conformational changes triggering the association of the cochaperonin GroES, followed by further large movements that eject the substrate polypeptide from hydrophobic binding sites into a GroES-capped, hydrophilic folding chamber. We used cryo-electron microscopy, statistical analysis, and flexible fitting to resolve a set of distinct GroEL-ATP conformations that can be ordered into a trajectory of domain rotation and elevation. The initial conformations are likely to be the ones that capture polypeptide substrate. Then the binding domains extend radially to separate from each other but maintain their binding surfaces facing the cavity, potentially exerting mechanical force upon kinetically trapped, misfolded substrates. The extended conformation also provides a potential docking site for GroES, to trigger the final, 100° domain rotation constituting the "power stroke" that ejects substrate into the folding chamber.

Indexed as

Adenosine TriphosphateBacteriaChaperonin 10Chaperonin 60Cryoelectron MicroscopyEscherichia coliEscherichia coli ProteinsHeat-Shock ProteinsHydrophobic and Hydrophilic InteractionsProtein ConformationProtein FoldingAdenosine TriphosphateChaperonin 10Chaperonin 60Escherichia coli ProteinsGroE protein, E coliHeat-Shock Proteins

Identifiers

PMID22445172
PMCPMC3326522

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.