Evidence map›Paper›PMID 18166195›Full record

ArticleJournal of molecular biology2008

The three-dimensional structure of CFA/I adhesion pili: traveler's diarrhea bacteria hang on by a spring.

Xiang-Qi Mu, Stephen J Savarino, Esther Bullitt

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2008. 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
2.6field-weighted citation impact, top 12% 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

22 citing papers in PubMed, 38 citations in OpenAlex.

  1. Impact of an alpha helix and a cysteine-cysteine disulfide bond on the resistance of bacterial adhesion pili to stress.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  15. Biofilm formation and binding specificities of CFA/I, CFA/II and CS2 adhesions of enterotoxigenic Escherichia coli and Cfae-R181A mutant.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2012
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  19. Structure of CFA/I fimbriae from enterotoxigenic Escherichia coli.Proceedings of the National Academy of Sciences of the United States of America · 2009
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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

3 authors at 2 institutions in 1 country.

Xiang-Qi MuDepartment of Physiology and Biophysics, Boston University School of Medicine, Boston, MA 02118, USA.
Stephen J Savarino
Esther Bullitt
Boston University · USNaval Medical Research Command · US

Funding

STRUCTURE/FUNCTION OF BACTERIAL ADHESION PILIR01GM055722 · NIGMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BULLITT, ESTHER · 1998 to 2009
$2.1M
NIGMS NIH HHS GM055722NIGMS NIH HHS R01 GM055722
6 · The paper itself

Abstract

To survive the harsh environment of a churning intestinal tract, bacteria attach to the host epithelium via thin fibers called pili (or fimbriae). Enterotoxigenic Escherichia coli bacteria expressing colonization factor antigen I (CFA/I) pili and related pili are the most common known bacterial cause of diarrheal disease, including traveler's diarrhea. CFA/I pili, assembled via the alternate chaperone pathway, are essential for binding and colonization of the small bowel by these pathogenic bacteria. Herein, we elucidate unique structural features of CFA/I pili that appear to optimize their function as bacterial tethers in the intestinal tract. Using transmission electron microscopy of negatively stained samples in combination with iterative three-dimensional helical reconstruction methods for image processing, we determined the structure of the CFA/I pilus filament. Our results indicate that strong end-to-end protein interactions and weak interactions between the coils of a sturdy spring-like helix provide the combination of strength, stability, and flexibility required to sustain bacterial adhesion and incite intestinal disease. We propose that CFA/I pili behave like a spring to maintain attachment to the gut lining during vortex mixing and downward flow of the intestinal contents, thereby persisting long enough for these bacteria to colonize the host epithelium and cause enteric disease.

Indexed as

Enterotoxigenic Escherichia coliEscherichia coli ProteinsFimbriae, BacterialFimbriae ProteinsMicroscopy, Electron, TransmissionModels, Molecularcolonization factor antigensEscherichia coli ProteinsFimbriae Proteins

Identifiers

PMID18166195
PMCPMC2265596
OpenAlexW2153007423

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.