ArticleNucleic acids research2021
Stabilization of Hfq-mediated translational repression by the co-repressor Crc in Pseudomonas aeruginosa.
Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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.
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.
Who cites it
25 citing papers in PubMed, 37 citations in OpenAlex.
- Functional analysis of natural variation in the RNA-binding protein CsrA across the bacterial domain predicts regulatory activity.Nucleic acids research · 2026Article
- GlnK Regulates the Type III Secretion System by Modulating NtrB-NtrC Homeostasis inMicroorganisms · 2026Article
- A bacterial translation activator with an intrinsically disordered RNA-binding region.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- From environmental signals to adaptive phenotypes: signal-responsive regulation and network logic of bacterial small RNAs.FEMS microbiology reviews · 2026Review
- The Catabolite Repression Control Protein Crc Regulates the Type III Secretion System Through the Adenylate Cyclase CyaB inMicroorganisms · 2025Article
- The link of carbon catabolite repression elements, small RNAs CrcY and CrcZ and polyhydroxyalkanoate metabolism in Pseudomonas putida KT2440.Biotechnology for biofuels and bioproducts · 2025Article
- Article
- Competition for Hfq drives kinetic selection of mRNA targets byProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Inactivation of Pseudomonas putida KT2440 pyruvate dehydrogenase relieves catabolite repression and improves the usefulness of this strain for degrading aromatic compounds.Microbial biotechnology · 2024Article
- RNA compaction and iterative scanning for small RNA targets by the Hfq chaperone.Nature communications · 2024Article
- Citrate cross-feeding bymBio · 2024Article
- Virulence and Metabolism Crosstalk: Impaired Activity of the Type Three Secretion System (T3SS) in aInternational journal of molecular sciences · 2023Article
- Hfq-licensed RNA-RNA interactome inProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Translational regulation by Hfq-Crc assemblies emerges from polymorphic ribonucleoprotein folding.The EMBO journal · 2023Article
- The acetoin assimilation pathway of Pseudomonas putida KT2440 is regulated by overlapping global regulatory elements that respond to nutritional cues.Environmental microbiology · 2023Article
- Catabolite repression control protein antagonist, a novel player inFrontiers in microbiology · 2023Article
- Regulation of hierarchical carbon substrate utilization, nitrogen fixation, and root colonization by the Hfq/Crc/CrcZY genes iniScience · 2022Article
- Dynamic Refolding of OxyS sRNA by the Hfq RNA Chaperone.Journal of molecular biology · 2022Article
- Model-Based Investigation of the Relationship between Regulation Level and Pulse Property of I1-FFL Gene Circuits.ACS synthetic biology · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 3 countries.
Funding
Abstract
In Pseudomonas aeruginosa the RNA chaperone Hfq and the catabolite repression control protein (Crc) govern translation of numerous transcripts during carbon catabolite repression. Here, Crc was shown to enhance Hfq-mediated translational repression of several mRNAs. We have developed a single-molecule fluorescence assay to quantitatively assess the cooperation of Hfq and Crc to form a repressive complex on a RNA, encompassing the translation initiation region and the proximal coding sequence of the P. aeruginosa amiE gene. The presence of Crc did not change the amiE RNA-Hfq interaction lifetimes, whereas it changed the equilibrium towards more stable repressive complexes. This observation is in accord with Cryo-EM analyses, which showed an increased compactness of the repressive Hfq/Crc/RNA assemblies. These biophysical studies revealed how Crc protein kinetically stabilizes Hfq/RNA complexes, and how the two proteins together fold a large segment of the mRNA into a more compact translationally repressive structure. In fact, the presence of Crc resulted in stronger translational repression in vitro and in a significantly reduced half-life of the target amiE mRNA in vivo. Although Hfq is well-known to act with small regulatory RNAs, this study shows how Hfq can collaborate with another protein to down-regulate translation of mRNAs that become targets for the degradative machinery.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.