Evidence map›Paper›PMID 21441522›Full record

ArticleJournal of bacteriology2011

A novel gene inactivation system reveals altered periplasmic flagellar orientation in a Borrelia burgdorferi fliL mutant.

M A Motaleb, Joshua E Pitzer, Syed Z Sultan, Jun Liu

Abstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

56 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Flagellar motor remodeling during swarming requires FliL.bioRxiv : the preprint server for biology · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. FliL ring enhances the function of periplasmic flagella.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Article
  11. Article
  12. The flagellar motor protein FliL forms a scaffold of circumferentially positioned rings required for stator activation.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Review
  14. Review
  15. Article
  16. Genetic Manipulation ofCurrent issues in molecular biology · 2021
    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

4 authors at 2 institutions in 1 country.

M A MotalebDepartment of Microbiology and Immunology, East Carolina University, Greenville, NC 27834, USA. motalebm@ecu.edu
Joshua E Pitzer
Syed Z Sultan
Jun Liu
East Carolina University · USThe University of Texas Health Science Center at Houston · US

Funding

Structure-Function Relationships in the Spirochetal Flagellar MotorR01AI087946 · NIAID · YALE UNIVERSITY · PI LIU, JUN · 2010 to 2025
$6.6M
NIAID NIH HHS R01 AI087946NIAID NIH HHS R01AI087946
6 · The paper itself

Abstract

Motility and chemotaxis are essential components of pathogenesis for many infectious bacteria, including Borrelia burgdorferi, the causative agent of Lyme disease. Motility and chemotaxis genes comprise 5 to 6% of the genome of B. burgdorferi, yet the functions of most of those genes remain uncharacterized, mainly due to the paucity of a nonpolar gene inactivation system. In this communication, we describe the development of a novel gene inactivation methodology to target B. burgdorferi fliL, a putative periplasmic flagellar gene located in a large motility operon and transcribed by RNA polymerase containing σ(70). Although the morphology of nonpolar fliL mutant cells was indistinguishable from that of wild-type cells, the mutant exhibited a defective-motility phenotype. Cryo-electron tomography (cryo-ET) of intact organisms revealed that the periplasmic flagella in the fliL mutant were frequently tilted toward the cell pole instead of their normal orientation toward the cell body. These defects were corrected when the mutant was complemented in cis. Moreover, a comparative analysis of flagellar motors from the wild type and the mutant provides the first structural evidence that FliL is localized between the stator and rotor. Our results suggest that FliL is likely involved in coordinating or regulating the orientation of periplasmic flagella in B. burgdorferi.

Indexed as

Gene SilencingBacterial ProteinsBorrelia burgdorferiCryoelectron MicroscopyElectron Microscope TomographyFlagellaGene Knockout TechniquesGenetic Complementation TestGenetics, MicrobialLocomotionMembrane ProteinsPeriplasmic ProteinsBacterial ProteinsFliL protein, BacteriaMembrane ProteinsPeriplasmic Proteins

Identifiers

PMID21441522
PMCPMC3133274
OpenAlexW2135464035

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.