Evidence map›Paper›PMID 19666567›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Salmonella regulates polyubiquitination and surface expression of MHC class II antigens.

Nicolas Lapaque, James L Hutchinson, Des C Jones, Stéphane Méresse, David W Holden, John Trowsdale, Adrian P Kelly

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

44 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. ThebioRxiv : the preprint server for biology · 2026
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  3. Article
  4. Review
  5. Article
  6. A Systemic Review on Fitness and Survival ofIndian journal of microbiology · 2024
    Review
  7. Article
  8. Deletion of an immune evasion gene,Frontiers in immunology · 2024
    Article
  9. Mechanisms for the Invasion and Dissemination ofThe Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022
    Review
  10. Revisiting PersistentPathogens (Basel, Switzerland) · 2021
    Review
  11. Article
  12. Article
  13. Proteomic Analysis ofMolecular & cellular proteomics : MCP · 2020
    Article
  14. Frontiers in cellular and infection microbiology · 2020
    Review
  15. Article
  16. Article
  17. Article
  18. Autophagy and Ubiquitination inFrontiers in cellular and infection microbiology · 2018
    Review
  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

7 authors at 3 institutions in 2 countries.

Nicolas LapaqueDivision of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom.
James L Hutchinson
Des C Jones
Stéphane Méresse
David W Holden
John Trowsdale
Adrian P Kelly
University of Cambridge · GBCentre d’Immunologie de Marseille-Luminy · FRImperial College London · GB

Funding

Medical Research Council G0800148Medical Research Council G9800943Wellcome Trust
6 · The paper itself

Abstract

Salmonella typhimurium is a facultative pathogen capable of entering and replicating in both professional and non-professional antigen presenting cells. Control of infection requires MHC class II restricted CD4 T-helper cell responses. Here we show that Salmonella infection induced polyubiquitination of HLA-DR, a post-translational modification that led to removal of mature, peptide loaded, alphabeta dimers from the cell surface. Immature alphabetaIi complexes were unaffected. Surface expression of all class II isotypes, HLA-DP, -DQ, and -DR, was reduced in infected cells, but other cell-surface molecules that traffic through class II peptide loading compartments were unaffected. A Salmonella strain carrying a mutation in ssaV did not induce ubiquitination of class II, implicating Salmonella T3SS-2 effector proteins in the process. T3SS-2 effectors, with established or proposed roles in ubiquitination, were not required for class II down-regulation, suggesting that an additional T3SS-2 effector is involved in regulating MHC class II ubiquitination. Although recognized as a viral immune evasion strategy, here, we demonstrate that bacteria can control surface MHC expression through ubiquitination.

Indexed as

Gene Expression Regulation, BacterialAmino Acid SequenceCD8-Positive T-LymphocytesCell MembraneCell SeparationCytoplasmFlow CytometryHeLa CellsHistocompatibility Antigens Class IIHumansModels, BiologicalMolecular Sequence DataSalmonellaSalmonella InfectionsUbiquitinHistocompatibility Antigens Class IIUbiquitin

Identifiers

PMID19666567
PMCPMC2721820
OpenAlexW1975252459

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.