Evidence map›Paper›PMID 15220932›Full record

ArticleNature cell biology2004

Phosphorylation of the enteropathogenic E. coli receptor by the Src-family kinase c-Fyn triggers actin pedestal formation.

Neil Phillips, Richard D Hayward, Vassilis Koronakis

Abstract read
PubMed Publisher
In one paragraph

Article in Nature cell biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
9.7field-weighted citation impact, top 1% 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

51 citing papers in PubMed, 121 citations in OpenAlex.

  1. Article
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  4. Article
  5. Using Linear Motif Database Resources to Identify SH2 Domain Binders.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  6. Review
  7. Review
  8. EnteropathogenicInternational journal of molecular sciences · 2020
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Modification of Bacterial Effector Proteins Inside Eukaryotic Host Cells.Frontiers in cellular and infection microbiology · 2016
    Review
  16. Article
  17. Article
  18. Article
  19. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Neil PhillipsUniversity of Cambridge, Department of Pathology, Tennis Court Road, Cambridge CB2 1QP, UK.
Richard D Hayward
Vassilis Koronakis
University of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enteropathogenic Escherichia coli (EPEC) causes diarrhoeal disease worldwide. Pathogen adherence to host cells induces reorganization of the actin cytoskeleton into 'pedestal-like' pseudopods beneath the extracellular bacteria. This requires two bacterial virulence factors that mimic a ligand-receptor interaction. EPEC delivers its own receptor, the translocated intimin receptor (Tir), into the target cell plasma membrane, which is phosphorylated on interaction with the bacterial surface protein intimin. Tir phosphorylated on Tyr 474 (ref. 4) binds the cellular adaptor Nck, triggering actin polymerization. Nevertheless, despite its critical role, the mechanism of Tir Tyr 474 phosphorylation remains unknown. Here, by artificially uncoupling Tir delivery and activity, we show that Tir phosphorylation and Nck-dependent pedestal formation require the Src-family kinase (SFK) c-Fyn. SFK inhibitors prevent Tyr 474 phosphorylation, and cells lacking c-fyn are resistant to pedestal formation. c-Fyn exclusively phosphorylates clustered Tir in vitro, and kinase knockdown suppresses Tir phosphorylation and pedestal formation in cultured cells. These results identify the transient interaction with host c-Fyn as a pivotal link between bacterial Tir and the cellular Nck-WASP-Arp2/3 cascade, illuminating a tractable experimental system in which to dissect tyrosine kinase signalling.

Indexed as

Actin CytoskeletonAdaptor Proteins, Signal TransducingAdhesins, BacterialAnimalsCarrier ProteinsCells, CulturedCell Surface ExtensionsEnzyme InhibitorsEscherichia coliEscherichia coli InfectionsEscherichia coli ProteinsFibroblastsMiceNIH 3T3 CellsOncogene ProteinsPhosphorylationAdaptor Proteins, Signal TransducingAdhesins, BacterialCarrier ProteinseaeA protein, E coliEnzyme InhibitorsEscherichia coli ProteinsFyn protein, mouseNck proteinOncogene ProteinsProto-Oncogene ProteinsProto-Oncogene Proteins c-fynReceptor Protein-Tyrosine KinasesReceptors, Cell SurfaceTir protein, E coli

Identifiers

PMID15220932
OpenAlexW2009420240

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.