ArticleNucleic acids research2021
Structure-based analyses of Salmonella RcsB variants unravel new features of the Rcs regulon.
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 9 papers.
What it found
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Widespread atypical response regulator SecR governs bacterial growth on methylamines through the serine cycle.Communications biology · 2026Article
- Untangling the Complexity of Two-Component Signal Transduction in Bacteria.Microorganisms · 2025Review
- ChIP-seq and structural analyses delineating the regulatory mechanism of master regulator EsrB inApplied and environmental microbiology · 2024Article
- A pH-sensitive switch activates virulence ineLife · 2023Article
- A frameshift ineLife · 2023Article
- Article
- The Rcs System Contributes to the Motility Defects of the Twin-Arginine Translocation System Mutant of Extraintestinal Pathogenic Escherichia coli.Journal of bacteriology · 2022Article
- Regulation of gene expression by non-phosphorylated response regulators.International microbiology : the official journal of the Spanish Society for Microbiology · 2021Review
- Antibiotics Used in Empiric Treatment of Ocular Infections Trigger the Bacterial Rcs Stress Response System Independent of Antibiotic Susceptibility.Antibiotics (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
RcsB is a transcriptional regulator that controls expression of numerous genes in enteric bacteria. RcsB accomplishes this role alone or in combination with auxiliary transcriptional factors independently or dependently of phosphorylation. To understand the mechanisms by which RcsB regulates such large number of genes, we performed structural studies as well as in vitro and in vivo functional studies with different RcsB variants. Our structural data reveal that RcsB binds promoters of target genes such as rprA and flhDC in a dimeric active conformation. In this state, the RcsB homodimer docks the DNA-binding domains into the major groove of the DNA, facilitating an initial weak read-out of the target sequence. Interestingly, comparative structural analyses also show that DNA binding may stabilize an active conformation in unphosphorylated RcsB. Furthermore, RNAseq performed in strains expressing wild-type or several RcsB variants provided new insights into the contribution of phosphorylation to gene regulation and assign a potential role of RcsB in controlling iron metabolism. Finally, we delimited the RcsB box for homodimeric active binding to DNA as the sequence TN(G/A)GAN4TC(T/C)NA. This RcsB box was found in promoter, intergenic and intragenic regions, facilitating both increased or decreased gene transcription.
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