ArticlemBio2023
Escherichia coli Leucine-Responsive Regulatory Protein Bridges DNA
Article in mBio, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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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.
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Who cites it
9 citing papers in PubMed, 11 citations in OpenAlex.
- A regulator of amino acid catabolism controls Acinetobacter baumannii gut colonization.Nature communications · 2026Article
- Enhancing the heat tolerance of homolactic Escherichia coli through reverse metabolic engineering.Applied microbiology and biotechnology · 2026Article
- The Algorithm for Reversible Jump Inference of Motifs.bioRxiv : the preprint server for biology · 2025Article
- Metagenomic approaches for studying ubiquitous yet diverse nucleoid associated proteins in microbial communities: challenges and advances.World journal of microbiology & biotechnology · 2025Review
- A regulator of amino acid catabolism controlsbioRxiv : the preprint server for biology · 2025Article
- The Power Duo: How the Interplay Between Nucleoid-Associated Proteins and Small Noncoding RNAs Orchestrates the Cellular Regulatory Symphony.Molecular microbiology · 2025Review
- Post-transcriptional regulation of aromatic amino acid metabolism by GcvB small RNA inMicrobiology spectrum · 2025Article
- A leucine responsive small RNA AbcR200 regulates expression of the lactate utilization (lut) operon in Acinetobacter baumannii DS002.The Journal of biological chemistry · 2025Article
- Plant-Root Exudate Analogues Influence Activity of the 1-Aminocyclopropane-1-Carboxylate (ACC) Deaminase Gene inMicroorganisms · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Feast-famine response proteins are a widely conserved class of global regulators in prokaryotes, the most highly studied of which is the Escherichia coli leucine-responsive regulatory protein (Lrp). Lrp senses the environmental nutrition status and subsequently regulates up to one-third of the genes in E. coli, either directly or indirectly. Lrp exists predominantly as octamers and hexadecamers (16mers), where leucine is believed to shift the equilibrium toward the octameric state. In this study, we analyzed the effects of three oligomerization state mutants of Lrp in terms of their ability to bind to DNA and regulate gene expression in response to exogenous leucine. We find that oligomerization beyond dimers is required for Lrp's regulatory activity and that, contrary to previous speculation, exogenous leucine modulates Lrp activity at its target promoters exclusively by inhibiting Lrp binding to DNA. We also show evidence that Lrp binding bridges DNA over length scales of multiple kilobases, revealing a new range of mechanisms for Lrp-mediated transcriptional regulation.
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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.