Evidence map›Paper›PMID 22747654›Full record

ArticleBMC microbiology2012

Variation of chemosensory receptor content of Campylobacter jejuni strains and modulation of receptor gene expression under different in vivo and in vitro growth conditions.

Christopher J Day, Lauren E Hartley-Tassell, Lucy K Shewell, Rebecca M King, Greg Tram, Serena K Day, Evgeny A Semchenko, Victoria Korolik

Abstract read
In one paragraph

Article in BMC microbiology, 2012. 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
–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

22 citing papers in PubMed.

  1. Identification of a dCache-type chemoreceptor inFrontiers in microbiology · 2024
    Article
  2. Article
  3. Bacterial chemotaxis in human diseases.Trends in microbiology · 2023
    Review
  4. Article
  5. Article
  6. Article
  7. TheScience signaling · 2021
    Article
  8. Inhibition ofAntibiotics (Basel, Switzerland) · 2020
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Transducer-Like Protein inFrontiers in microbiology · 2018
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Association ofEuropean journal of microbiology & immunology · 2016
    Article
  19. Article
  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

8 authors.

Christopher J DayInstitute for Glycomics, Griffith University Gold Coast Campus, Griffith University, Griffith, Australia.
Lauren E Hartley-Tassell
Lucy K Shewell
Rebecca M King
Greg Tram
Serena K Day
Evgeny A Semchenko
Victoria Korolik

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChemotaxis is crucial for the colonisation/infection of hosts with Campylobacter jejuni. Central to chemotaxis are the group A chemotaxis genes that are responsible for sensing the external environment. The distribution of group A chemoreceptor genes, as found in the C. jejuni sequenced strains, tlp1-4, 7, 10 and 11 were determined in 33 clinical human and avian isolates.

resultsGroup A tlp gene content varied among the strains with genes encoding tlp1 (aspartate receptor, ccaA) and tlp7 present in all strains tested, where as tlp11 was present in only one of our international collection clinical isolates, C. jejuni 520, but was more prevalent (9/13) in the freshly isolated clinical stains from patients who required hospitalisation due to C. jejuni infection (GCH1-17). Relative expression levels of the group A tlp genes were also determined in C. jejuni reference strains NCTC 11168-GS, 11168-O and 81116 using cells grown in vitro at 37°C, 42°C and maintained at room temperature and with cells isolated directly from murine and avian hosts by immune magnetic separation without subsequent culture. Gene expression of tlp genes was varied based on strain, growth conditions and in vivo isolation source. Tlp1, although the most conserved, showed the lowest and most varied mRNA expression and protein production under laboratory conditions. Tlp7 was highly expressed at most conditions tested, and gene expression was not influenced by the tlp7 gene encoding a full length protein or one expressed as separate periplasmic and cytoplasmic domains.

conclusionWe have shown that chemosensory receptor set variation exists among C. jejuni strains, but is not dependent on the isolation source.

Indexed as

ChemotaxisGene Expression Regulation, BacterialAnimalsBacterial ProteinsCampylobacter InfectionsCampylobacter jejuniChickensHumansMaleMembrane ProteinsMiceBacterial ProteinsMembrane Proteins

Identifiers

PMID22747654
PMCPMC3461409

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.