Evidence map›Paper›PMID 23674680›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Distinct quaternary structures of the AAA+ Lon protease control substrate degradation.

Ellen F Vieux, Matthew L Wohlever, James Z Chen, Robert T Sauer, Tania A Baker

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

38 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. TheeLife · 2024
    Article
  3. Intraneuronal β-amyloid impaired mitochondrial proteostasis through the impact on LONP1.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. 'Frontiers in microbiology · 2021
    Article
  16. Article
  17. Cryo-EM structure of substrate-freeCurrent research in structural biology · 2019
    Article
  18. Article
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

Ellen F VieuxDepartment of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Matthew L Wohlever
James Z Chen
Robert T Sauer
Tania A Baker
Massachusetts Institute of Technology · US

Funding

Single particle reconstructionP01GM062580 · NIGMS · HARVARD MEDICAL SCHOOL · PI HARRISON, STEPHEN COPLAN · 2001 to 2016
$23.7M
REPRESSOR &ANTIREPRESSOR PROTEINS OF BACTERIOPHAGER01AI016892 · NIAID · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BAKER, TANIA A, SAUER, ROBERT T · 1985 to 2022
$13.0M
Protein Recognition for Remodeling and Degradation by Bacterial AAA+ ATPasesR01GM049224 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BAKER, TANIA A · 1993 to 2013
$4.0M
The functions and mechanism of SHSP degradation in Escherichia coliF32GM094994 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI VIEUX, ELLEN FRANCES · 2010 to 2011
$99k
Howard Hughes Medical InstituteNIAID NIH HHS AI-16892NIAID NIH HHS R01 AI016892NIGMS NIH HHS F32 GM094994NIGMS NIH HHS F32GM094994NIGMS NIH HHS GM-49224NIGMS NIH HHS P01 GM062580NIGMS NIH HHS P01 GM62580NIGMS NIH HHS R01 GM049224
6 · The paper itself

Abstract

Lon is an ATPase associated with cellular activities (AAA+) protease that controls cell division in response to stress and also degrades misfolded and damaged proteins. Subunits of Lon are known to assemble into ring-shaped homohexamers that enclose an internal degradation chamber. Here, we demonstrate that hexamers of Escherichia coli Lon also interact to form a dodecamer at physiological protein concentrations. Electron microscopy of this dodecamer reveals a prolate structure with the protease chambers at the distal ends and a matrix of N domains forming an equatorial hexamer-hexamer interface, with portals of ∼45 Å providing access to the enzyme lumen. Compared with hexamers, Lon dodecamers are much less active in degrading large substrates but equally active in degrading small substrates. Our results support a unique gating mechanism that allows the repertoire of Lon substrates to be tuned by its assembly state.

Indexed as

Models, MolecularProtein ConformationProteolysisBlotting, WesternChromatography, GelEscherichia coliEscherichia coli ProteinsLasersMicroscopy, ElectronMultienzyme ComplexesMutation, MissenseProtease LaScattering, RadiationUltracentrifugationEscherichia coli ProteinsLon protein, E coliMultienzyme ComplexesProtease LaATP-dependent proteaseEM structureIbpBregulated proteolysissubstrate gating

Identifiers

PMID23674680
PMCPMC3670373
OpenAlexW2099111412

What OpenQuestion holds

Textmetadata
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.