Evidence map›Paper›PMID 15006792›Full record

ArticleApplied and environmental microbiology2004

pbp2229-mediated nisin resistance mechanism in Listeria monocytogenes confers cross-protection to class IIa bacteriocins and affects virulence gene expression.

Anne Gravesen, Birgitte Kallipolitis, Kim Holmstrøm, Poul Erik Høiby, Manilduth Ramnath, Susanne Knøchel

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

34 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Cold Shock Proteins Promote Nisin Tolerance inFrontiers in microbiology · 2021
    Article
  10. Article
  11. Food Safety through Natural Antimicrobials.Antibiotics (Basel, Switzerland) · 2019
    Review
  12. Current Knowledge onFoods (Basel, Switzerland) · 2018
    Review
  13. Resistance ofFrontiers in microbiology · 2018
    Review
  14. Article
  15. Article
  16. Lantibiotic resistance.Microbiology and molecular biology reviews : MMBR · 2015
    Review
  17. Article
  18. 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

6 authors at 3 institutions in 2 countries.

Anne GravesenDepartment of Dairy and Food Science, Centre for Advanced Food Studies, LMC, The Royal Veterinary and Agricultural University, DK-1958 Frederiksberg C, Denmark. alg@kvl.dk
Birgitte Kallipolitis
Kim Holmstrøm
Poul Erik Høiby
Manilduth Ramnath
Susanne Knøchel
Bioneer (Denmark) · DKStellenbosch University · ZAUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It was previously shown that enhanced nisin resistance in some mutants was associated with increased expression of three genes, pbp2229, hpk1021, and lmo2487, encoding a penicillin-binding protein, a histidine kinase, and a protein of unknown function, respectively. In the present work, we determined the direct role of the three genes in nisin resistance. Interruption of pbp2229 and hpk1021 eliminated the nisin resistance phenotype. Interruption of hpk1021 additionally abolished the increase in pbp2229 expression. The results indicate that this nisin resistance mechanism is caused directly by the increase in pbp2229 expression, which in turn is brought about by the increase in hpk1021 expression. We also found a degree of cross-protection between nisin and class IIa bacteriocins and investigated possible mechanisms. The expression of virulence genes in one nisin-resistant mutant and two class IIa bacteriocin-resistant mutants of the same wild-type strain was analyzed, and each mutant consistently showed either an increase or a decrease in the expression of virulence genes (prfA-regulated as well as prfA-independent genes). Although the changes mostly were moderate, the consistency indicates that a mutant-specific change in virulence may occur concomitantly with bacteriocin resistance development.

Indexed as

Genes, BacterialBacteriocinsBase SequenceDNA, BacterialDrug Resistance, BacterialGene ExpressionListeria monocytogenesMutagenesis, InsertionalMutationNisinOligonucleotide Array Sequence AnalysisPhenotypeVirulenceBacteriocinsDNA, BacterialNisin

Identifiers

PMID15006792
PMCPMC368357
OpenAlexW2112832502

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.