ArticleNature microbiology2025
KorB switching from DNA-sliding clamp to repressor mediates long-range gene silencing in a multi-drug resistance plasmid.
Article in Nature microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 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
11 citing papers in PubMed.
- TrbA binds and locks a sliding clamp KorB to repress transcription on multi-drug resistance plasmids.Journal of bacteriology · 2026Article
- Tangled Tail of Mechanically Interlocked Peptides.Journal of the American Chemical Society · 2026Review
- Stable inheritance of the Streptomyces linear plasmid SCP1 by dual ParABS partition systems.Nucleic acids research · 2026Article
- Uncovering ParB-dependent and -independent subclasses of T-dioxygenases from bacteriophage.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Genomic insights into antimicrobial resistance in ocular pathogens from India.Communications biology · 2026Article
- Versatile NTP recognition and domain fusions expand the functional repertoire of the ParB-CTPase fold beyond chromosome segregation.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- Orchestrated long-distance gene activation by a ParB-like BisD-CTP DNA clamp in low-frequency transfer competence development in Pseudomonas putida.Nucleic acids research · 2025Article
- Expanding the diversity of bacterial DNA partitioning: A CTP-independent ParABProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Evolution of a Plasmid Regulatory Circuit Ameliorates Plasmid Fitness Cost.Molecular biology and evolution · 2025Article
- Evolution of a Plasmid Regulatory Circuit Ameliorates Plasmid Fitness Cost.bioRxiv : the preprint server for biology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors.
Funding
Abstract
Examples of long-range gene regulation in bacteria are rare and generally thought to involve DNA looping. Here, using a combination of biophysical approaches including X-ray crystallography and single-molecule analysis for the KorB-KorA system in Escherichia coli, we show that long-range gene silencing on the plasmid RK2, a source of multi-drug resistance across diverse Gram-negative bacteria, is achieved cooperatively by a DNA-sliding clamp, KorB, and a clamp-locking protein, KorA. We show that KorB is a CTPase clamp that can entrap and slide along DNA to reach distal target promoters up to 1.5 kb away. We resolved the tripartite crystal structure of a KorB-KorA-DNA co-complex, revealing that KorA latches KorB into a closed clamp state. DNA-bound KorA thus stimulates repression by stalling KorB sliding at target promoters to occlude RNA polymerase holoenzymes. Together, our findings explain the mechanistic basis for KorB role switching from a DNA-sliding clamp to a co-repressor and provide an alternative mechanism for long-range regulation of gene expression in bacteria.
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.