Evidence map›Paper›PMID 10559162›Full record

ArticleJournal of bacteriology1999

Molecular cloning and characterization of the Helicobacter pylori fliD gene, an essential factor in flagellar structure and motility.

J S Kim, J H Chang, S I Chung, J S Yum

Abstract read
In one paragraph

Article in Journal of bacteriology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
–field-weighted citation impact
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

52 citing papers in PubMed.

  1. Article
  2. Article
  3. Dissecting the role of flagellar subunits inJournal of bacteriology · 2025
    Article
  4. Review
  5. Article
  6. Antibiotics (Basel, Switzerland) · 2024
    Review
  7. Motility of Different GastricMicroorganisms · 2023
    Review
  8. How Long Will It Take to Launch an EffectiveInfection and drug resistance · 2023
    Review
  9. Article
  10. A plasmid-freeFrontiers in bioengineering and biotechnology · 2022
    Article
  11. Pathogenesis and clinical management ofWorld journal of gastroenterology · 2019
    Review
  12. Article
  13. Article
  14. Review
  15. Strategies used byWorld journal of gastroenterology · 2017
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  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

4 authors.

J S KimMogam Biotechnology Research Institute, Koosung-myon, Yongin-city, Kyonggi-do 449-910, Korea. jsyum@kgcc.co.kr
J H Chang
S I Chung
J S Yum

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Helicobacter pylori colonizes the human stomach and can cause gastroduodenal disease. Flagellar motility is regarded as a major factor in the colonizing ability of H. pylori. The functional roles of flagellar structural proteins other than FlaA, FlaB, and FlgE are not well understood. The fliD operon of H. pylori consists of flaG, fliD, and fliS genes, in the order stated, under the control of a sigma(28)-dependent promoter. In an effort to elucidate the function of the FliD protein, a hook-associated protein 2 homologue, in flagellar morphogenesis and motility, the fliD gene (2,058 bp) was cloned and isogenic mutants were constructed by disruption of the fliD gene with a kanamycin resistance cassette and electroporation-mediated allelic-exchange mutagenesis. In the fliD mutant, morphologically abnormal flagellar appendages in which very little filament elongation was apparent were observed. The fliD mutant strain was completely nonmotile, indicating that these abnormal flagella were functionally defective. Furthermore, the isogenic fliD mutant of H. pylori SS1, a mouse-adapted strain, was not able to colonize the gastric mucosae of host mice. These results suggest that H. pylori FliD is an essential element in the assembly of the functional flagella that are required for colonization of the gastric mucosa.

Indexed as

AnimalsBacterial ProteinsCloning, MolecularDuodenal UlcerElectroporationFlagellaFlagellinGene Expression Regulation, BacterialGenes, BacterialHelicobacter InfectionsHelicobacter pyloriHumansMiceMicroscopy, ElectronMolecular Sequence DataRestriction MappingBacterial ProteinsFlaD protein, BacteriaFlagellin

Identifiers

PMID10559162
PMCPMC94171

What OpenQuestion holds

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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.