Evidence map›Paper›PMID 21565698›Full record

ArticleStructure (London, England : 1993)2011

Cryo-EM structure of a group II chaperonin in the prehydrolysis ATP-bound state leading to lid closure.

Junjie Zhang, Boxue Ma, Frank DiMaio, Nicholai R Douglas, Lukasz A Joachimiak, David Baker, Judith Frydman, Michael Levitt, Wah Chiu

Open access · bronzeAbstract read
In one paragraph

Article in Structure (London, England : 1993), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Snapshots of actin and tubulin folding inside the TRiC chaperonin.Nature structural & molecular biology · 2022
    Article
  4. Article
  5. Structural analysis of the Sulfolobus solfataricus TF55β chaperonin by cryo-electron microscopy.Acta crystallographica. Section F, Structural biology communications · 2021
    Article
  6. Review
  7. Review
  8. Article
  9. Biological Applications at the Cutting Edge of Cryo-Electron Microscopy.Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada · 2018
    Review
  10. Intraring allostery controls the function and assembly of a hetero-oligomeric class II chaperonin.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. The Mechanism and Function of Group II Chaperonins.Journal of molecular biology · 2015
    Review
  18. Article
  19. Group II archaeal chaperonin recognition of partially folded human γD-crystallin mutants.Protein science : a publication of the Protein Society · 2014
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Junjie ZhangVerna and Marrs McLean Department of Biochemistry and Molecular Biology, National Center for Macromolecular Imaging, Baylor College of Medicine, Houston, TX 77030, USA.
Boxue Ma
Frank DiMaio
Nicholai R Douglas
Lukasz A Joachimiak
David Baker
Judith Frydman
Michael Levitt
Wah Chiu
Stanford University · USBaylor College of Medicine · USUniversity of Washington · US

Funding

Center for Protein Folding Machinery (RMI)PN2EY016525 · NEI · BAYLOR COLLEGE OF MEDICINE · PI CHIU, WAH · 2005 to 2015
$33.6M
ZERNIKE PHASE PLATE CRYOEM IN OKAZAKIP41RR002250 · NCRR · UNIVERSITY OF ARIZONA · PI CHIU, WAH · 1985 to 2011
$22.1M
Accurate Molecular Modeling in Structural GenomicsR01GM063817 · NIGMS · STANFORD UNIVERSITY · PI LEVITT, MICHAEL · 2001 to 2016
$5.0M
High resolution structure modeling with RosettaR01GM092802 · NIGMS · UNIVERSITY OF WASHINGTON · PI BAKER, DAVID · 2010 to 2017
$2.3M
Computational Design of an LAGLIDADGs with Novel Recognition Specificities (CompoRL1GM084433 · NIGMS · UNIVERSITY OF WASHINGTON · PI BAKER, DAVID · 2007 to 2011
$1.9M
Howard Hughes Medical InstituteNCRR NIH HHS P41 RR002250NCRR NIH HHS P41RR002250NEI NIH HHS PN2 EY016525NEI NIH HHS PN2EY016525NIGMS NIH HHS R01 GM063817NIGMS NIH HHS R01 GM092802NIGMS NIH HHS RL1 GM084433
6 · The paper itself

Abstract

Chaperonins are large ATP-driven molecular machines that mediate cellular protein folding. Group II chaperonins use their "built-in lid" to close their central folding chamber. Here we report the structure of an archaeal group II chaperonin in its prehydrolysis ATP-bound state at subnanometer resolution using single particle cryo-electron microscopy (cryo-EM). Structural comparison of Mm-cpn in ATP-free, ATP-bound, and ATP-hydrolysis states reveals that ATP binding alone causes the chaperonin to close slightly with a ∼45° counterclockwise rotation of the apical domain. The subsequent ATP hydrolysis drives each subunit to rock toward the folding chamber and to close the lid completely. These motions are attributable to the local interactions of specific active site residues with the nucleotide, the tight couplings between the apical and intermediate domains within the subunit, and the aligned interactions between two subunits across the rings. This mechanism of structural changes in response to ATP is entirely different from those found in group I chaperonins.

Indexed as

Adenosine TriphosphateBinding SitesCryoelectron MicroscopyGroup II ChaperoninsHydrolysisMethanococcusModels, MolecularProtein BindingProtein ConformationProtein FoldingProtein SubunitsAdenosine TriphosphateGroup II ChaperoninsProtein Subunits

Identifiers

PMID21565698
PMCPMC3705922
OpenAlexW2116051806

What OpenQuestion holds

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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.