Evidence map›Paper›PMID 24009690›Full record

ArticlePloS one2013

Periplasmic flagellar export apparatus protein, FliH, is involved in post-transcriptional regulation of FlaB, motility and virulence of the relapsing fever spirochete Borrelia hermsii.

Cyril Guyard, Sandra J Raffel, Merry E Schrumpf, Eric Dahlstrom, Daniel Sturdevant, Stacy M Ricklefs, Craig Martens, Stanley F Hayes, Elizabeth R Fischer, Bryan T Hansen and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  6. Genetic Manipulation ofCurrent issues in molecular biology · 2021
    Review
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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

12 authors at 3 institutions in 2 countries.

Cyril GuyardPublic Health Ontario, Toronto, Ontario, Canada ; University of Toronto, Toronto, Ontario, Canada. cyril.guyard@gmail.com
Sandra J Raffel
Merry E Schrumpf
Eric Dahlstrom
Daniel Sturdevant
Stacy M Ricklefs
Craig Martens
Stanley F Hayes
Elizabeth R Fischer
Bryan T Hansen
Stephen F Porcella
Tom G Schwan
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · USPublic Health Ontario · CA

Funding

Infectious Diseases Research Technologies Core - RMLZICAI001052 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CHERRY, JAMES · 2009 to 2025
$133.3M
Adaptations Of Borrelia Spirochetes To Their Tick Vectors And Mammalian HostsZIAAI000492 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI SCHWAN, TOM · 2009 to 2014
$3.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Spirochetes are bacteria characterized in part by rotating periplasmic flagella that impart their helical or flat-wave morphology and motility. While most other bacteria rely on a transcriptional cascade to regulate the expression of motility genes, spirochetes employ post-transcriptional mechanism(s) that are only partially known. In the present study, we characterize a spontaneous non-motile mutant of the relapsing fever spirochete Borrelia hermsii that was straight, non-motile and deficient in periplasmic flagella. We used next generation DNA sequencing of the mutant's genome, which when compared to the wild-type genome identified a 142 bp deletion in the chromosomal gene encoding the flagellar export apparatus protein FliH. Immunoblot and transcription analyses showed that the mutant phenotype was linked to the posttranscriptional deficiency in the synthesis of the major periplasmic flagellar filament core protein FlaB. Despite the lack of FlaB, the amount of FlaA produced by the fliH mutant was similar to the wild-type level. The turnover of the residual pool of FlaB produced by the fliH mutant was comparable to the wild-type spirochete. The non-motile mutant was not infectious in mice and its inoculation did not induce an antibody response. Trans-complementation of the mutant with an intact fliH gene restored the synthesis of FlaB, a normal morphology, motility and infectivity in mice. Therefore, we propose that the flagellar export apparatus protein regulates motility of B. hermsii at the post-transcriptional level by influencing the synthesis of FlaB.

Indexed as

RNA Processing, Post-TranscriptionalAnimalsBacterial ProteinsBorreliaDisease Models, AnimalFlagellaFlagellinGene Expression Regulation, BacterialGene OrderGenetic Complementation TestGenome, BacterialHumansMiceMutationOpen Reading FramesProtein StabilityBacterial ProteinsflaB flagellinFlagellinfliH protein, Bacteria

Identifiers

PMID24009690
PMCPMC3757020
OpenAlexW2092269475

What OpenQuestion holds

Textmetadata
LicenceCC0
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.