Evidence map›Paper›PMID 23523349›Full record

ArticleCell reports2013

Substrate-activated conformational switch on chaperones encodes a targeting signal in type III secretion.

Li Chen, Xuanjun Ai, Athina G Portaliou, Conceicao A S A Minetti, David P Remeta, Anastassios Economou, Charalampos G Kalodimos

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Cell reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.0field-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

24 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Review
  3. Cryoelectron-microscopy structure of the enteropathogenicProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Type Three Secretion System in Attaching and Effacing Pathogens.Frontiers in cellular and infection microbiology · 2016
    Review
  14. Article
  15. Type III secretion systems: the bacterial flagellum and the injectisome.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

7 authors at 3 institutions in 3 countries.

Li ChenCenter of Integrative Proteomics Research and Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA.
Xuanjun Ai
Athina G Portaliou
Conceicao A S A Minetti
David P Remeta
Anastassios Economou
Charalampos G Kalodimos
Rutgers, The State University of New Jersey · USFoundation for Research and Technology Hellas · GRUniversity of Crete · GR

Funding

Structural insight into novel mechanisms of type III secretionR01AI094623 · NIAID · UNIVERSITY OF MINNESOTA · PI KALODIMOS, CHARALAMPOS · 2012 to 2023
$4.0M
Structural insight into novel mechanisms of type III secretionR56AI094623 · NIAID · RUTGERS, THE STATE UNIV OF N.J. · PI KALODIMOS, CHARALAMPOS · 2011 to 2011
$366k
NIAID NIH HHS AI094623NIAID NIH HHS R01 AI094623NIAID NIH HHS R56 AI094623
6 · The paper itself

Abstract

The targeting of type III secretion (TTS) proteins at the injectisome is an important process in bacterial virulence. Nevertheless, how the injectisome specifically recognizes TTS substrates among all bacterial proteins is unknown. A TTS peripheral membrane ATPase protein located at the base of the injectisome has been implicated in the targeting process. We have investigated the targeting of the EspA filament protein and its cognate chaperone, CesAB, to the EscN ATPase of the enteropathogenic E. coli (EPEC). We show that EscN selectively engages the EspA-loaded CesAB but not the unliganded CesAB. Structure analysis revealed that the targeting signal is encoded in a disorder-order structural transition in CesAB that is elicited only upon the binding of its physiological substrate, EspA. Abrogation of the interaction between the CesAB-EspA complex and EscN resulted in severe secretion and infection defects. Additionally, we show that the targeting and secretion signals are distinct and that the two processes are likely regulated by different mechanisms.

Indexed as

Protein Sorting SignalsAdenosine TriphosphatasesAmino Acid SequenceEscherichia coliEscherichia coli ProteinsMolecular ChaperonesMolecular Docking SimulationMolecular Sequence DataProtein BindingProtein Structure, TertiaryProtein TransportAdenosine TriphosphatasesEscherichia coli ProteinsEspA protein, E coliMolecular ChaperonesProtein Sorting Signals

Identifiers

PMID23523349
PMCPMC3835959
OpenAlexW2159492430

What OpenQuestion holds

Textmetadata
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.