Evidence map›Paper›PMID 28432347›Full record

ArticleScientific reports2017

Identification and Characterization of Differentially-Regulated Type IVb Pilin Genes Necessary for Predation in Obligate Bacterial Predators.

Ofir Avidan, Margarita Petrenko, René Becker, Sebastian Beck, Michael Linscheid, Shmuel Pietrokovski, Edouard Jurkevitch

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 41 citations in OpenAlex.

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  18. Microorganisms · 2020
    Article
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  20. Biotechnological Potential ofFrontiers in microbiology · 2020
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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

7 authors at 3 institutions in 2 countries.

Ofir AvidanDepartment of Molecular Genetics, The Weizmann Institute of Science, Rehovot, Israel.
Margarita PetrenkoDepartment of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
René BeckerDepartment of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany.
Sebastian BeckDepartment of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany.
Michael LinscheidDepartment of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0002-8902-1734
Shmuel PietrokovskiDepartment of Molecular Genetics, The Weizmann Institute of Science, Rehovot, Israel. Shmuel.Pietrokovski@weizmann.ac.il.
Edouard JurkevitchDepartment of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel. edouard.jurkevitch@mail.huji.ac.il.
Humboldt-Universität zu Berlin · DEHebrew University of Jerusalem · ILWeizmann Institute of Science · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bdellovibrio bacteriovorus is an obligate predator of bacteria that grows and divides within the periplasm of its prey. Functions involved in the early steps of predation have been identified and characterized, but mediators of prey invasion are still poorly detailed. By combining omics data available for Bdellovibrio and like organisms (BALO's), we identified 43 genes expressed in B. bacteriovorus during the early interaction with prey. These included genes in a tight adherence (TAD) operon encoding for two type IVb fimbriae-like pilin proteins (flp1 and flp2), and their processing and export machinery. Two additional flp genes (flp3 and flp4) were computationally identified at other locations along the chromosome, defining the largest and most diverse type IVb complement known in bacteria to date. Only flp1, flp2 and flp4 were expressed; their respective gene knock-outs resulted in a complete loss of the predatory ability without losing the ability to adhere to prey cells. Additionally, we further demonstrate differential regulation of the flp genes as the TAD operon of BALOs with different predatory strategies is controlled by a flagellar sigma factor FliA, while flp4 is not. Finally, we show that FliA, a known flagellar transcriptional regulator in other bacteria, is an essential Bdellovibrio gene.

Indexed as

Bacterial AdhesionBacterial ProteinsBdellovibrio bacteriovorusComputational BiologyFimbriae, BacterialFimbriae ProteinsGene Expression Regulation, BacterialGenes, EssentialGenomicsBacterial ProteinsFimbriae Proteins

Identifiers

PMID28432347
PMCPMC5430801
OpenAlexW2606407164

What OpenQuestion holds

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LicenceCC BY
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.