Evidence map›Paper›PMID 16041011›Full record

ArticleInfection and immunity2005

Characterization of the filamentous hemagglutinin-like protein FhaS in Bordetella bronchiseptica.

Steven M Julio, Peggy A Cotter

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

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  5. The Two TpsB-Like Proteins inJournal of bacteriology · 2021
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  11. Type V secretion: mechanism(s) of autotransport through the bacterial outer membrane.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    Review
  12. Article
  13. Article
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  15. Article
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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

2 authors at 1 institution in 1 country.

Steven M JulioDepartment of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106-9610, USA.
Peggy A Cotter
University of California, Santa Barbara · US

Funding

REVERSE TRANSCRIPTASE AND OTHER HIV MOLECULAR STRUCTURESR01AI043896 · NIAID · YALE UNIVERSITY · PI STEITZ, THOMAS ARTHUR · 1998 to 2002
$696k
NIAID NIH HHS AI43896
6 · The paper itself

Abstract

Filamentous hemagglutinin (FHA) is a large (>200 kDa), rod-shaped protein expressed by bordetellae that is both surface-associated and secreted. FHA mediates bacterial adherence to epithelial cells and macrophages in vitro and is absolutely required for tracheal colonization in vivo. The recently sequenced Bordetella bronchiseptica genome revealed the presence of a gene, fhaS, that is nearly identical to fhaB, the FHA structural gene. We show that although fhaS expression requires the BvgAS virulence control system, it is maximal only under a subset of conditions in which BvgAS is active, suggesting an additional level of regulation. We also show that, like FHA, FhaS undergoes a C-terminal proteolytic processing event and is both surface-associated and secreted and that export across the outer membrane requires the channel-forming protein FhaC. Unlike FHA, however, FhaS was unable to mediate adherence of B. bronchiseptica to epithelial cell lines in vitro and was not required for respiratory tract colonization in vivo. In a coinfection experiment, a DeltafhaS strain was out-competed by wild-type B. bronchiseptica, indicating that fhaS is expressed in vivo and that FhaS contributes to bacterial fitness in a manner revealed when the mutant must compete with wild-type bacteria. These data suggest that FHA and FhaS perform distinct functions during the Bordetella infectious cycle. A survey of various Bordetella strains revealed two distinct fhaS alleles that segregate according to pathogen host range and that B. parapertussis(hu) most likely acquired its fhaS allele from B. pertussis horizontally, suggesting fhaS may contribute to host-species specificity.

Indexed as

Adhesins, BacterialAllelesAnimalsBacterial AdhesionBacterial Outer Membrane ProteinsBordetella bronchisepticaBordetella InfectionsBordetella parapertussisBordetella pertussisEpithelial CellsHemagglutininsProtein TransportRatsRats, WistarVirulenceVirulence Factors, BordetellaAdhesins, BacterialBacterial Outer Membrane Proteinsfilamentous hemagglutinin adhesin, Bordetella pertussisHemagglutininsVirulence Factors, Bordetella

Identifiers

PMID16041011
PMCPMC1201180
OpenAlexW2132731252

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.