Evidence map›Paper›PMID 24945892›Full record

ArticlePLoS genetics2014

Regulation of Hfq by the RNA CrcZ in Pseudomonas aeruginosa carbon catabolite repression.

Elisabeth Sonnleitner, Udo Bläsi

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
12.4field-weighted citation impact, top 1% 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

97 citing papers in PubMed, 1 synthesis or guideline pooled it, 175 citations in OpenAlex.

  1. Pooled it
  2. A bacterial translation activator with an intrinsically disordered RNA-binding region.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. The effect of cCMP and cUMP on growth ofFrontiers in microbiology · 2025
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  8. The adaptability ofFrontiers in cellular and infection microbiology · 2025
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  10. GenoMine: a CRISPR-Cas9-based kill switch for biocontainment ofFrontiers in bioengineering and biotechnology · 2024
    Article
  11. Review
  12. Article
  13. Spatial heterogeneity in biofilm metabolism elicited by local control of phenazine methylation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  14. Hfq-licensed RNA-RNA interactome inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

37 more citing papers are in PubMed but not listed here.

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.

Elisabeth SonnleitnerDepartment of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, Center of Molecular Biology, University of Vienna, Vienna, Austria.
Udo BläsiDepartment of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, Center of Molecular Biology, University of Vienna, Vienna, Austria.
Max Perutz Labs · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Carbon Catabolite repression (CCR) allows a fast adaptation of Bacteria to changing nutrient supplies. The Pseudomonas aeruginosa (PAO1) catabolite repression control protein (Crc) was deemed to act as a translational regulator, repressing functions involved in uptake and utilization of carbon sources. However, Crc of PAO1 was recently shown to be devoid of RNA binding activity. In this study the RNA chaperone Hfq was identified as the principle post-transcriptional regulator of CCR in PAO1. Hfq is shown to bind to A-rich sequences within the ribosome binding site of the model mRNA amiE, and to repress translation in vitro and in vivo. We further report that Crc plays an unknown ancillary role, as full-fledged repression of amiE and other CCR-regulated mRNAs in vivo required its presence. Moreover, we show that the regulatory RNA CrcZ, transcription of which is augmented when CCR is alleviated, binds to Hfq with high affinity. This study on CCR in PAO1 revealed a novel concept for Hfq function, wherein the regulatory RNA CrcZ acts as a decoy to abrogate Hfq-mediated translational repression of catabolic genes and thus highlights the central role of RNA based regulation in CCR of PAO1.

Indexed as

AmidohydrolasesCarbonCatabolite RepressionGene Expression Regulation, BacterialHost Factor 1 ProteinPseudomonas aeruginosaPseudomonas InfectionsRegulatory Sequences, Ribonucleic AcidRibosomesRNA, BacterialRNA-Binding ProteinsRNA, MessengerRNA Processing, Post-TranscriptionalAmidohydrolasesCarbonHost Factor 1 ProteinRegulatory Sequences, Ribonucleic AcidRNA, BacterialRNA-Binding ProteinsRNA, Messenger

Identifiers

PMID24945892
PMCPMC4063720
OpenAlexW2147030152

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.