Evidence map›Paper›PMID 23121689›Full record

ArticleMolecular microbiology2012

A translocator-specific export signal establishes the translocator-effector secretion hierarchy that is important for type III secretion system function.

Amanda G Tomalka, Charles M Stopford, Pei-Chung Lee, Arne Rietsch

Abstract read
In one paragraph

Article in Molecular microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  3. Review
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  5. Article
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  9. TheThe Journal of biological chemistry · 2018
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Type III secretion systems: the bacterial flagellum and the injectisome.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  15. Article
  16. Article
  17. Article
  18. Control of type III secretion activity and substrate specificity by the cytoplasmic regulator PcrG.Proceedings of the National Academy of Sciences of the United States of America · 2014
    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

4 authors.

Amanda G TomalkaDepartment of Molecular Biology and Microbiology, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106-4960, USA.
Charles M Stopford
Pei-Chung Lee
Arne Rietsch

Funding

Research Training Program in Pulmonary Host Defense, Inflammation and ImmunityT32HL083823 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI KELLEY, THOMAS J · 2006 to 2010
$881k
NHLBI NIH HHS T32 HL083823
6 · The paper itself

Abstract

Type III secretion systems are used by many Gram-negative pathogens to directly deliver effector proteins into the cytoplasm of host cells. To accomplish this, bacteria secrete translocator proteins that form a pore in the host-cell membrane through which the effector proteins are then introduced into the host cell. Evidence from multiple systems indicates that the pore-forming translocator proteins are exported before effectors, but how this secretion hierarchy is established is unclear. Here we used the Pseudomonas aeruginosa translocator protein PopD as a model to identify its export signals. The N-terminal secretion signal and chaperone, PcrH, are required for export under all conditions. Two novel signals in PopD, one proximal to the chaperone binding site and one at the very C-terminus of the protein, are required for export of PopD before effector proteins. These novel export signals establish the translocator-effector secretion hierarchy, which in turn, is critical for the delivery of effectors into host cells.

Indexed as

Bacterial Secretion SystemsMembrane Transport ProteinsModels, BiologicalProtein Sorting SignalsProtein TransportPseudomonas aeruginosaBacterial Secretion SystemsMembrane Transport ProteinsProtein Sorting Signals

Identifiers

PMID23121689
PMCPMC3524397

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Registered trials

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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.