Evidence map›Paper›PMID 19555453›Full record

ArticleMolecular microbiology2009

In vivo localizations of membrane stress controllers PspA and PspG in Escherichia coli.

Christoph Engl, Goran Jovanovic, Louise J Lloyd, Heath Murray, Martin Spitaler, Liming Ying, Jeff Errington, Martin Buck

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 69 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

8 authors at 2 institutions in 2 countries.

Christoph EnglDivision of Biology, Sir Alexander Fleming Building, Imperial College London, London SW7 2AZ, UK.
Goran Jovanovic
Louise J Lloyd
Heath Murray
Martin Spitaler
Liming Ying
Jeff Errington
Martin Buck
Instituto Alexander Fleming · ARImperial College London · GB

Funding

Biotechnology and Biological Sciences Research Council 43/G18654Biotechnology and Biological Sciences Research Council BB/G00594X/1Wellcome Trust
6 · The paper itself

Abstract

The phage shock protein (Psp) response in Gram-negative bacteria counteracts membrane stress. Transcription of the PspF regulon (pspABCDE and pspG) in Escherichia coli is induced upon stresses that dissipate the proton motive force (pmf). Using GFP fusions we have visualized the subcellular localizations of PspA (a negative regulator and effector of Psp) and PspG (an effector of Psp). It has previously been proposed that PspA evenly coates the inner membrane of the cell. We now demonstrate that instead of uniformly covering the entire cell, PspA (and PspG) is highly organized into what appear to be distinct functional classes (complexes at the cell pole and the lateral cell wall). Real-time observations revealed lateral PspA and PspG complexes are highly mobile, but absent in cells lacking MreB. Without the MreB cytoskeleton, induction of the Psp response is still observed, yet these cells fail to maintain pmf under stress conditions. The two spatial subspecies therefore appear to be dynamically and functionally distinct with the polar clusters being associated with sensory function and the mobile complexes with maintenance of pmf.

Indexed as

Bacterial ProteinsCytoskeletonDNA, BacterialEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialHeat-Shock ProteinsMembrane ProteinsRegulonBacterial ProteinsDNA, BacterialEscherichia coli ProteinsHeat-Shock ProteinsMembrane ProteinsMreB protein, E coliphage shock protein, Bacteriaphage shock protein G, E coli

Identifiers

PMID19555453
PMCPMC2763126
OpenAlexW1997752778

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.