Evidence map›Paper›PMID 15175283›Full record

ArticleJournal of bacteriology2004

The decrease in FlaA observed in a flaB mutant of Borrelia burgdorferi occurs posttranscriptionally.

M A Motaleb, Melanie S Sal, Nyles W Charon

Abstract read
In one paragraph

Article in Journal of bacteriology, 2004. 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
–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

39 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Broadly conserved FlgV controls flagellar assembly andbioRxiv : the preprint server for biology · 2024
    Article
  5. Chemotaxis Coupling Protein CheWInfection and immunity · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Cryoelectron tomography reveals the sequential assembly of bacterial flagella in Borrelia burgdorferi.Proceedings of the National Academy of Sciences of the United States of America · 2013
    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

3 authors.

M A MotalebDepartment of Microbiology, Immunology, and Cell Biology, West Virginia University, Box 9177, Robert C. Byrd Health Sciences Center, Morgantown, WV 26506-9177, USA. ncharon@hsc.wvu.edu
Melanie S Sal
Nyles W Charon

Funding

BORRELIA BURGDORFERI MOTILITYR01AI029743 · NIAID · WEST VIRGINIA UNIVERSITY · PI CHARON, NYLES · 1990 to 2007
$2.1M
NIAID NIH HHS AI29743NIAID NIH HHS R01 AI029743
6 · The paper itself

Abstract

The Lyme disease bacterium Borrelia burgdorferi is a motile spirochete with a flat-wave morphology. The periplasmic flagella, which are situated between the outer membrane sheath and cell cylinder, are essential for both the cell's wavy shape and motility. Here we focus on the structure and regulation of its periplasmic flagella. Previous studies have suggested that the periplasmic flagella consist of a polymer of the major filament protein FlaB and a minor protein, FlaA. We used immunoprecipitation methodology to present further evidence that FlaA is indeed a flagellar protein. In addition, in contrast to FlaA of the spirochete Brachyspira hyodysenteriae, B. burgdorferi FlaA did not impact the overall helical shape of the periplasmic flagella. We have previously shown that B. burgdorferi lacks the sigma factor-dependent cascade control of motility gene transcription found in other bacteria. To begin to understand motility gene regulation in B. burgdorferi, we examined the effects of an insertion mutation in flaB on the amounts of proteins encoded by motility genes. Of several motility gene-encoded proteins examined, only the amount of FlaA was decreased in the flaB mutant; it was 13% compared to the wild-type amount. Real-time reverse transcriptase PCR analysis indicated that this inhibition was not the result of a decrease in flaA mRNA. In addition, protein stability analysis suggested that FlaA was turned over in the flaB mutant. Our results indicate that the lack of FlaB negatively influences the amount of FlaA found in the cell and that this effect is at the level of either translational control or protein turnover.

Indexed as

Gene Expression Regulation, BacterialMutationBorrelia burgdorferiFlagellaFlagellinPeriplasmPrecipitin TestsProtein Processing, Post-TranslationalReverse Transcriptase Polymerase Chain ReactionflaA protein, bacteriaflaB flagellinFlagellin

Identifiers

PMID15175283
PMCPMC419964

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.