Evidence map›Paper›PMID 30150748›Full record

ArticleNature communications2018

Revealing the mechanisms of membrane protein export by virulence-associated bacterial secretion systems.

Lea Krampen, Silke Malmsheimer, Iwan Grin, Thomas Trunk, Anja Lührmann, Jan-Willem de Gier, Samuel Wagner

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. 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
2.7field-weighted citation impact, top 11% 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, 36 citations in OpenAlex.

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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 5 institutions in 3 countries.

Lea KrampenUniversity of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Elfriede-Aulhorn-Str. 6, 72076, Tübingen, Germany.
Silke MalmsheimerUniversity of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Elfriede-Aulhorn-Str. 6, 72076, Tübingen, Germany.
Iwan GrinUniversity of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Elfriede-Aulhorn-Str. 6, 72076, Tübingen, Germany.ORCID http://orcid.org/0000-0001-7061-9018
Thomas TrunkUniversity of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Elfriede-Aulhorn-Str. 6, 72076, Tübingen, Germany.
Anja LührmannInstitute of Microbiology, University Hospital Erlangen, Wasserturmstr. 3-5, 91054, Erlangen, Germany.
Jan-Willem de GierCenter for Biomembrane Research, Stockholm University, Svante-Arrhenius väg 16, SE-106 91, Stockholm, Sweden.ORCID http://orcid.org/0000-0001-5537-4358
Samuel WagnerUniversity of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), Elfriede-Aulhorn-Str. 6, 72076, Tübingen, Germany. samuel.wagner@med.uni-tuebingen.de.ORCID http://orcid.org/0000-0003-1808-3556
University of Tübingen · DEGerman Center for Infection Research · DEStockholm University · SEUniversitätsklinikum Erlangen · DEUniversity of Oslo · NO

Funding

Alexander von Humboldt-Stiftung (Alexander von Humboldt Foundation) 1145434 KOSEuropean Molecular Biology Organization (EMBO) EMBO ASTF 349-2014Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg (MWK) 7635.52/Wagner/1
6 · The paper itself

Abstract

Many bacteria export effector proteins fulfilling their function in membranes of a eukaryotic host. These effector membrane proteins appear to contain signals for two incompatible bacterial secretion pathways in the same protein: a specific export signal, as well as transmembrane segments that one would expect to mediate targeting to the bacterial inner membrane. Here, we show that the transmembrane segments of effector proteins of type III and type IV secretion systems indeed integrate in the membrane as required in the eukaryotic host, but that their hydrophobicity in most instances is just below the threshold required for mediating targeting to the bacterial inner membrane. Furthermore, we show that binding of type III secretion chaperones to both the effector's chaperone-binding domain and adjacent hydrophobic transmembrane segments also prevents erroneous targeting. These results highlight the evolution of a fine discrimination between targeting pathways that is critical for the virulence of many bacterial pathogens.

Indexed as

Bacterial ProteinsBacterial Secretion SystemsHydrophobic and Hydrophilic InteractionsMembrane ProteinsProtein BindingVirulenceBacterial ProteinsBacterial Secretion SystemsMembrane Proteins

Identifiers

PMID30150748
PMCPMC6110835
OpenAlexW2888490003

What OpenQuestion holds

Textmetadata
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.