ArticleProceedings of the National Academy of Sciences of the United States of America2023
An SI3-σ arch stabilizes cyanobacteria transcription initiation complex.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 17 citations in OpenAlex.
- Canonical transcription termination mechanisms explain a minority of operons in cyanobacteria.mSystems · 2026Article
- Family-level specialization in protein domain insertion architectures.Protein science : a publication of the Protein Society · 2026Article
- Mechanism and reconstitution of circadian transcription in cyanobacteria.Nature structural & molecular biology · 2026Article
- Unraveling the start element and regulatory divergence of core promoters across the domain bacteria.Nucleic acids research · 2025Article
- Canonical transcription termination mechanisms explain a minority of operons in cyanobacteria.bioRxiv : the preprint server for biology · 2025Article
- Inorganic carbon levels regulate growth via SigC signaling cascade in cyanobacteria.The New phytologist · 2025Article
- Molecular basis of Streptomyces ECF σShbA factors transcribing principal σHrdB genes.Nucleic acids research · 2025Article
- Architecture of the spinach plastid-encoded RNA polymerase.Nature communications · 2024Article
- Structural basis of promoter recognition by Staphylococcus aureus RNA polymerase.Nature communications · 2024Article
- Structure and function of the Si3 insertion integrated into the trigger loop/helix of cyanobacterial RNA polymerase.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- DNA looping mediates cooperative transcription activation.Nature structural & molecular biology · 2024Article
- Structure and function of the Si3 insertion integrated into the trigger loop/helix of cyanobacterial RNA polymerase.bioRxiv : the preprint server for biology · 2024Article
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Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
Multisubunit RNA polymerases (RNAPs) associate with initiation factors (σ in bacteria) to start transcription. The σ factors are responsible for recognizing and unwinding promoter DNA in all bacterial RNAPs. Here, we report two cryo-EM structures of cyanobacterial transcription initiation complexes at near-atomic resolutions. The structures show that cyanobacterial RNAP forms an "SI3-σ" arch interaction between domain 2 of σ
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