Evidence map›Paper›PMID 24637842›Full record

ArticlePloS one2014

Generation and phenotyping of a collection of sRNA gene deletion mutants of the haloarchaeon Haloferax volcanii.

Katharina Jaschinski, Julia Babski, Matthias Lehr, Anna Burmester, Juliane Benz, Ruth Heyer, Marcella Dörr, Anita Marchfelder, Jörg Soppa

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

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  7. A Small RNA Is Linking CRISPR-Cas and Zinc Transport.Frontiers in molecular biosciences · 2021
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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

9 authors at 2 institutions in 1 country.

Katharina JaschinskiGoethe-University, Institute for Molecular Biosciences, Frankfurt, Germany.
Julia BabskiGoethe-University, Institute for Molecular Biosciences, Frankfurt, Germany.
Matthias LehrGoethe-University, Institute for Molecular Biosciences, Frankfurt, Germany.
Anna BurmesterGoethe-University, Institute for Molecular Biosciences, Frankfurt, Germany.
Juliane BenzBiology II, Ulm University, Ulm, Germany.
Ruth HeyerBiology II, Ulm University, Ulm, Germany.
Marcella DörrBiology II, Ulm University, Ulm, Germany.
Anita MarchfelderBiology II, Ulm University, Ulm, Germany.
Jörg SoppaGoethe-University, Institute for Molecular Biosciences, Frankfurt, Germany.
Goethe University Frankfurt · DEUniversität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The haloarchaeon Haloferax volcanii was shown to contain 145 intergenic and 45 antisense sRNAs. In a comprehensive approach to unravel various biological roles of haloarchaeal sRNAs in vivo, 27 sRNA genes were selected and deletion mutants were generated. The phenotypes of these mutants were compared to that of the parent strain under ten different conditions, i.e. growth on four different carbon sources, growth at three different salt concentrations, and application of four different stress conditions. In addition, cell morphologies in exponential and stationary phase were observed. Furthermore, swarming of 17 mutants was analyzed. 24 of the 27 mutants exhibited a difference from the parent strain under at least one condition, revealing that haloarchaeal sRNAs are involved in metabolic regulation, growth under extreme conditions, regulation of morphology and behavior, and stress adaptation. Notably, 7 deletion mutants showed a gain of function phenotype, which has not yet been described for any other prokaryotic sRNA gene deletion mutant. Comparison of the transcriptomes of one sRNA gene deletion mutant and the parent strain led to the identification of differentially expressed genes. Genes for flagellins and chemotaxis were up-regulated in the mutant, in accordance with its gain of function swarming phenotype. While the deletion mutant analysis underscored that haloarchaeal sRNAs are involved in many biological functions, the degree of conservation is extremely low. Only 3 of the 27 genes are conserved in more than 10 haloarchaeal species. 22 of the 27 genes are confined to H. volcanii, indicating a fast evolution of haloarchaeal sRNA genes.

Indexed as

Gene DeletionGenes, ArchaealPhenotypeRNA, ArchaealAdaptation, BiologicalEnergy MetabolismEvolution, MolecularGene Expression ProfilingHaloferax volcaniiSodium ChlorideStress, PhysiologicalTranscriptomeRNA, ArchaealSodium Chloride

Identifiers

PMID24637842
PMCPMC3956466
OpenAlexW2059870117

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.