Evidence map›Paper›PMID 10735861›Full record

ArticleJournal of bacteriology2000

Type IV pilus genes pilA and pilC of Pseudomonas stutzeri are required for natural genetic transformation, and pilA can be replaced by corresponding genes from nontransformable species.

S Graupner, V Frey, R Hashemi, M G Lorenz, G Brandes, W Wackernagel

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In one paragraph

Article in Journal of bacteriology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
10.4field-weighted citation impact, top 2% 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

31 citing papers in PubMed, 56 citations in OpenAlex.

  1. Beyond the Usual Suspects: EmergingInternational journal of molecular sciences · 2026
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  4. Comparative genomics ofFrontiers in microbiology · 2023
    Article
  5. Article
  6. Review
  7. Article
  8. Structure of the competence pilus major pilin ComGC inThe Journal of biological chemistry · 2017
    Article
  9. Complete genome sequence ofStandards in genomic sciences · 2017
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. The accessory genome of Pseudomonas aeruginosa.Microbiology and molecular biology reviews : MMBR · 2010
    Review
  16. Gene sequences of the pil operon reveal relationships between symbiotic strains of Vibrio fischeri.International journal of systematic and evolutionary microbiology · 2008
    Article
  17. Article
  18. Article
  19. Biology of Pseudomonas stutzeri.Microbiology and molecular biology reviews : MMBR · 2006
    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

6 authors at 3 institutions in 1 country.

S GraupnerAG Genetik, Fachbereich Biologie, Universität Oldenburg, D-26111 Oldenburg, Germany.
V Frey
R Hashemi
M G Lorenz
G Brandes
W Wackernagel
Carl von Ossietzky Universität Oldenburg · DEMedizinische Hochschule Hannover · DEUniversity of Bremen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas stutzeri lives in terrestrial and aquatic habitats and is capable of natural genetic transformation. After transposon mutagenesis, transformation-deficient mutants were isolated from a P. stutzeri JM300 strain. In one of them a gene which coded for a protein with 75% amino acid sequence identity to PilC of Pseudomonas aeruginosa, an accessory protein for type IV pilus biogenesis, was inactivated. The presence of type IV pili was demonstrated by susceptibility to the type IV pilus-dependent phage PO4, by occurrence of twitching motility, and by electron microscopy. The pilC mutant had no pili and was defective in twitching motility. Further sequencing revealed that pilC is clustered in an operon with genes homologous to pilB and pilD of P. aeruginosa, which are also involved in pilus formation. Next to these genes but transcribed in the opposite orientation a pilA gene encoding a protein with high amino acid sequence identity to pilin, the structural component of type IV pili, was identified. Insertional inactivation of pilA abolished pilus formation, PO4 plating, twitching motility, and natural transformation. The amounts of (3)H-labeled P. stutzeri DNA that were bound to competent parental cells and taken up were strongly reduced in the pilC and pilA mutants. Remarkably, the cloned pilA genes from nontransformable organisms like Dichelobacter nodosus and the PAK and PAO strains of P. aeruginosa fully restored pilus formation and transformability of the P. stutzeri pilA mutant (along with PO4 plating and twitching motility). It is concluded that the type IV pili of the soil bacterium P. stutzeri function in DNA uptake for transformation and that their role in this process is not confined to the species-specific pilin.

Indexed as

EndopeptidasesOxidoreductasesTransformation, BacterialBacterial ProteinsBiological TransportDNA, BacterialDNA-Binding ProteinsFimbriae ProteinsGenes, BacterialGenetic Complementation TestMembrane ProteinsMolecular Sequence DataMutationOpen Reading FramesPili, SexPseudomonasBacterial ProteinsDNA, BacterialDNA-Binding ProteinsEndopeptidasesFimbriae ProteinsMembrane ProteinsOxidoreductasespilB protein, BacteriapilC protein, Neisseria gonorrhoeaeprepilin peptidase protein, Bacteria

Identifiers

PMID10735861
PMCPMC111267
OpenAlexW2107731806

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.