Evidence map›Paper›PMID 22748764›Full record

ArticleStructure (London, England : 1993)2012

Maturation in action: CryoEM study of a viral capsid caught during expansion.

David Veesler, Joel Quispe, Nikolaus Grigorieff, Clinton S Potter, Bridget Carragher, John E Johnson

Abstract read
In one paragraph

Article in Structure (London, England : 1993), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Structure of faustovirus, a large dsDNA virus.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Confessions of an icosahedral virus crystallographer.Microscopy (Oxford, England) · 2013
    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

6 authors.

David VeeslerDepartment of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Joel Quispe
Nikolaus Grigorieff
Clinton S Potter
Bridget Carragher
John E Johnson

Funding

XRAY CRYSTALLOGRAPHIC STRUCTURE ANALYSIS: PROTEIN SORTINGP41RR001081 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BABBITT, PATRICIA CLEMENT · 1985 to 2011
$17.6M
TRD #3: An automated and streamlined pipeline for in-situ molecular microscopyP41GM103310 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI DE MARCO, ALEX, KIEFT, JEFFREY S · 2012 to 2021
$14.7M
WORKSHOPS AND TRAININGP41RR017573 · NCRR · SCRIPPS RESEARCH INSTITUTE, THE · PI CARRAGHER, BRIDGET OLIVIA · 2002 to 2011
$14.2M
Resource for Biocomputing Visualization and InformaticsP41GM103311 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FERRIN, THOMAS E · 2012 to 2017
$8.2M
HIGH RESOLUTION STRUCTURAL STUDY OF DSDNA BACTERIOPHAGER01AI040101 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI JOHNSON, JOHN EMIL · 1996 to 2014
$5.2M
NCRR NIH HHS 2P41RR001081NCRR NIH HHS 2P41RR017573-11NCRR NIH HHS P41 RR001081NCRR NIH HHS P41 RR017573NIAID NIH HHS R01 AI040101NIGMS NIH HHS 9 P41 GM103310-11NIGMS NIH HHS 9P41GM103311NIGMS NIH HHS P41 GM103310NIGMS NIH HHS P41 GM103311
6 · The paper itself

Abstract

Bacteriophage HK97 maturation involves discrete intermediate particle forms, comparable to transitional states in protein folding, before reaching its mature form. The process starts by formation of a metastable prohead, poised for exothermic expansion triggered by DNA packaging. During maturation, the capsid subunit transitions from a strained to a canonical tertiary conformation and this has been postulated to be the driving mechanism for initiating expansion via switching hexameric capsomer architecture from skewed to 6-fold symmetric. We report the subnanometer electron-cryomicroscopy reconstruction of the HK97 first expansion intermediate before any crosslink formation. This form displays 6-fold symmetric hexamers, but capsid subunit tertiary structures exhibit distortions comparable to the prohead forms. We propose that coat subunit strain release acts in synergy with the first crosslinks to drive forward maturation. Finally, we speculate that the energetic features of this transition may result from increased stability of intermediates during maturation via enhanced inter-subunit interactions.

Indexed as

Amino Acid SubstitutionBacteriophagesCapsidCapsid ProteinsCryoelectron MicroscopyProtein Structure, QuaternaryProtein Structure, SecondaryProtein Structure, TertiaryProtein SubunitsVirus AssemblyCapsid ProteinsProtein Subunits

Identifiers

PMID22748764
PMCPMC3418467

What OpenQuestion holds

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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.