Evidence map›Paper›PMID 9537363›Full record

ArticleJournal of bacteriology1998

Characterization of the bvgR locus of Bordetella pertussis.

T J Merkel, C Barros, S Stibitz

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

39 citing papers in PubMed, 95 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. The Effect of Erythromycin in Macrolide-resistantCurrent pharmaceutical biotechnology · 2025
    Article
  5. Article
  6. Article
  7. RclS Sensor Kinase Modulates Virulence ofInternational journal of molecular sciences · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. A Novel Bvg-Repressed Promoter CausesJournal of bacteriology · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Cyclic di-GMP: the first 25 years of a universal bacterial second messenger.Microbiology and molecular biology reviews : MMBR · 2013
    Review
  20. Review
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 3 institutions in 1 country.

T J MerkelNational Institute of Dental Research, National Institutes of Health, Bethesda, Maryland 20892-4350, USA. merkel@yoda.nidr.nih.gov
C Barros
S Stibitz
Center for Biologics Evaluation and Research · USNational Institute of Dental and Craniofacial Research · USNational Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bordetella pertussis, the causative agent of whooping cough, produces a wide array of factors that are associated with its ability to cause disease. The expression and regulation of these virulence factors is dependent upon the bvg locus (originally designated the vir locus), which encodes two proteins: BvgA, a 23-kDa cytoplasmic protein, and BvgS, a 135-kDa transmembrane protein. It is proposed that BvgS responds to environmental signals and interacts with BvgA, a transcriptional regulator which upon modification by BvgS binds to specific promoters and activates transcription. An additional class of genes is repressed by the bvg locus. Expression of this class, the bvg-repressed genes (vrgs [for vir-repressed genes]), is reduced under conditions in which expression of the aforementioned bvg-activated virulence factors is maximal; this repression is dependent upon the presence of an intact bvgAS locus. We have previously identified a locus required for regulation of all of the known bvg-repressed genes in B. pertussis. This locus, designated bvgR, maps to a location immediately downstream of bvgAS. We have undertaken deletion and complementation studies, as well as sequence analysis, in order to identify the bvgR open reading frame and identify the cis-acting sequences required for regulated expression of bvgR. Studies utilizing transcriptional fusions of bvgR to the gene encoding alkaline phosphatase have demonstrated that bvgR is activated at the level of transcription and that this activation is dependent upon an intact bvgAS locus.

Indexed as

Genes, BacterialGenes, RegulatorAmino Acid SequenceBacterial ProteinsBase SequenceBordetella pertussisChromosome MappingGenetic Complementation TestMolecular Sequence DataOpen Reading FramesTranscription FactorsBacterial ProteinsBvgA protein, BacteriabvgS protein, Bordetella pertussisTranscription Factors

Identifiers

PMID9537363
PMCPMC107078
OpenAlexW2127632644

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.