Evidence map›Paper›PMID 18996344›Full record

ArticleCell host & microbe2008

Structure and function of Salmonella SifA indicate that its interactions with SKIP, SseJ, and RhoA family GTPases induce endosomal tubulation.

Maikke B Ohlson, Zhiwei Huang, Neal M Alto, Marie-Pierre Blanc, Jack E Dixon, Jijie Chai, Samuel I Miller

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 3% 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

93 citing papers in PubMed, 1 synthesis or guideline pooled it, 164 citations in OpenAlex.

  1. Pooled it
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  3. The interplay betweenCell insight · 2025
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  5. Infection biology ofEcoSal Plus · 2024
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  7. Functional Divergence of the ParalogInternational journal of molecular sciences · 2024
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  10. Speaking the host language: howMicrobiology (Reading, England) · 2023
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  11. Article
  12. VpdC is a ubiquitin-activated phospholipase effector that regulatesProceedings of the National Academy of Sciences of the United States of America · 2022
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  13. Endomembrane remodeling and dynamics inMicrobial cell (Graz, Austria) · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Manipulation of Host Cell Organelles by Intracellular Pathogens.International journal of molecular sciences · 2021
    Review
  18. Article
  19. Review
  20. Interesting Biochemistries in the Structure and Function of Bacterial Effectors.Frontiers in cellular and infection microbiology · 2021
    Review

33 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Maikke B OhlsonDepartment of Microbiology, University of Washington, Seattle, WA 98195, USA.
Zhiwei Huang
Neal M Alto
Marie-Pierre Blanc
Jack E Dixon
Jijie Chai
Samuel I Miller
University of Washington · USNational Institute of Biological Sciences, Beijing · CNThe University of Texas Southwestern Medical Center · USUniversity of California San Diego · US

Funding

Variation in Human Innate ImmunityU54AI057141 · NIAID · UNIVERSITY OF WASHINGTON · PI COOKSON, BRAD T · 2003 to 2013
$102.3M
ZDS2P REGULATES SWE1P-DEPENDENT POLARIZED CELL GROWTH IN S CEREVISIAEP41RR011823 · NCRR · UNIVERSITY OF WASHINGTON · PI DAVIS, TRACY · 1996 to 2011
$24.7M
Public Health and Behavioral Research TrainingT32DE007132 · NIDCR · UNIVERSITY OF WASHINGTON · PI DEROUEN, TIMOTHY A · 1985 to 2010
$6.9M
SALMONELLA PATHOGENICITY ISLAND 2 EFFECTOR PROTEINSR01AI048683 · NIAID · UNIVERSITY OF WASHINGTON · PI MILLER, SAMUEL I · 2001 to 2015
$5.1M
NCRR NIH HHS P41 RR011823NIAID NIH HHS R01 AI048683NIAID NIH HHS U54 AI057141NIDCR NIH HHS T32 DE007132NIDCR NIH HHS T32 DE07132
6 · The paper itself

Abstract

The Salmonella typhimurium type III secretion effector protein SifA is essential for inducing tubulation of the Salmonella phagosome and binds the mammalian kinesin-binding protein SKIP. Coexpression of SifA with the effector SseJ induced tubulation of mammalian cell endosomes, similar to that induced by Salmonella infection. Interestingly, GTP-bound RhoA, RhoB, and RhoC also induced endosomal tubulation when coexpressed with SseJ, indicating that SifA likely mimics or activates a RhoA family GTPase. The structure of SifA in complex with the PH domain of SKIP revealed that SifA has two distinct domains; the amino terminus binds SKIP, and the carboxyl terminus has a fold similar to SopE, a Salmonella effector with Rho GTPase guanine nucleotide exchange factor activity (GEF). Similar to GEFs, SifA interacted with GDP-bound RhoA, and purified SseJ and RhoA formed a protein complex, suggesting that SifA, SKIP, SseJ, and RhoA family GTPases cooperatively promote host membrane tubulation.

Indexed as

Bacterial ProteinsEndosomesGlycoproteinsHeLa CellsHumansMicrotubulesMolecular Sequence DataMultigene FamilyPhosphoric Monoester HydrolasesProtein BindingProtein Structure, Tertiaryrho GTP-Binding ProteinsSalmonella InfectionsSalmonella typhimuriumBacterial ProteinsGlycoproteinsPhosphoric Monoester Hydrolasesrho GTP-Binding ProteinsSifA protein, SalmonellaSKIP enzyme, humanSopE protein, Salmonella

Identifiers

PMID18996344
PMCPMC2658612
OpenAlexW2137615940

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.