Evidence map›Paper›PMID 24286927›Full record

ArticleMicrobes and infection2014

A Legionella effector modulates host cytoskeletal structure by inhibiting actin polymerization.

Zhenhua Guo, Robert Stephenson, Jiazhang Qiu, Shijun Zheng, Zhao-Qing Luo

Open access · greenAbstract read
In one paragraph

Article in Microbes and infection, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

30 citing papers in PubMed, 50 citations in OpenAlex.

  1. Crystal structure of theVirulence · 2026
    Article
  2. Life science alliance · 2026
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  6. mLife · 2025
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  7. Article
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  11. Article
  12. Article
  13. Eat or Be Eaten: Strategies Used byInfection and immunity · 2023
    Review
  14. Article
  15. Article
  16. eLife · 2022
    Article
  17. Affecting the Effectors: Regulation ofPathogens (Basel, Switzerland) · 2021
    Review
  18. Article
  19. Frontiers in cellular and infection microbiology · 2020
    Article
  20. Targeting Eukaryotic mRNA Translation byFrontiers in molecular biosciences · 2020
    Review
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 2 institutions in 2 countries.

Zhenhua GuoState Key Laboratory of Agrobiotechnology, Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, and College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
Robert StephensonDepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
Jiazhang QiuDepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.
Shijun ZhengState Key Laboratory of Agrobiotechnology, Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, and College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
Zhao-Qing LuoDepartment of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA. Electronic address: luoz@purdue.edu.
Purdue University West Lafayette · USChina Agricultural University · CN

Funding

Quality Assurance and Quality Control Project Management: Improving Submissions and Study Conduct in the Human Subjects Research Prior Approval ProcessUL1TR002529 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI MOE, SHARON M, WIEHE, SARAH ELIZABETH · 2018 to 2022
$27.2M
Indiana Clinical and Translational Sciences InstituteUL1TR001108 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI DENNE, SCOTT C., SHEKHAR, ANANTHA · 2013 to 2017
$23.3M
Modulation of host Apoptotic pathways by Legionella pneumophilaR01AI069344 · NIAID · PURDUE UNIVERSITY · PI LUO, ZHAO-QING · 2007 to 2011
$1.5M
Modulation of Host Vesicle Trafficking by Legionella pneumophilaK02AI085403 · NIAID · PURDUE UNIVERSITY · PI LUO, ZHAO-QING · 2010 to 2014
$556k
The Roles of Host Factors in the AMPylation Activity of a Bacterial EffectorR21AI092043 · NIAID · PURDUE UNIVERSITY · PI LUO, ZHAO-QING · 2011 to 2012
$413k
Molecular Mechanisms of Host Function Exploitation by Type IV effectors of LegionR56AI103168 · NIAID · PURDUE UNIVERSITY · PI LUO, ZHAO-QING · 2013 to 2013
$327k
NCATS NIH HHS UL1 TR001108NIAID NIH HHS K02 AI085403NIAID NIH HHS K02AI085403NIAID NIH HHS R01 AI069344NIAID NIH HHS R01AI069344NIAID NIH HHS R21 AI092043NIAID NIH HHS R21AI092043NIAID NIH HHS R56 AI103168NIAID NIH HHS R56AI103168
6 · The paper itself

Abstract

Successful infection by the opportunistic pathogen Legionella pneumophila requires the collective activity of hundreds of virulence proteins delivered into the host cell by the Dot/Icm type IV secretion system. These virulence proteins, also called effectors modulate distinct host cellular processes to create a membrane-bound niche called the Legionella containing vacuole (LCV) supportive of bacterial growth. We found that Ceg14 (Lpg0437), a Dot/Icm substrate is toxic to yeast and such toxicity can be alleviated by overexpression of profilin, a protein involved in cytoskeletal structure in eukaryotes. We further showed that mutations in profilin affect actin binding but not other functions such as interactions with poly-l-proline or phosphatidylinositol, abolish its suppressor activity. Consistent with the fact the profilin suppresses its toxicity, expression of Ceg14 but not its non-toxic mutants in yeast affects actin distribution and budding of daughter cells. Although Ceg14 does not detectably interact with profilin, it co-sediments with filamentous actin and inhibits actin polymerization, causing the accumulation of short actin filaments. Together with earlier studies, these results reveal that multiple L. pneumophila effectors target components of the host cytoskeleton.

Indexed as

ActinsBacterial ProteinsHEK293 CellsHost-Pathogen InteractionsHumansLegionellaMicrobial ViabilityPlasmidsPolymerizationProfilinsYeastsActinsBacterial ProteinsProfilinsIntracellular growthProfilinType IV secretion systemVesicle trafficking

Identifiers

PMID24286927
PMCPMC3965633
OpenAlexW2007719498

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.