ArticleAntimicrobial agents and chemotherapy2014
Antibiotic streptolydigin requires noncatalytic Mg2+ for binding to RNA polymerase.
Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 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
5 citing papers in PubMed, 12 citations in OpenAlex.
- In silico bioprospecting of the Neotropical Plant Mandacaru (Cereus) for antimicrobial properties.Probiotics and antimicrobial proteins · 2026Article
- Article
- Pleomorphic effects of three small-molecule inhibitors on transcription elongation bybioRxiv : the preprint server for biology · 2025Article
- Single-molecule studies reveal the off-pathway early paused state intermediates as a target of streptolydigin inhibition of RNA polymerase and its dramatic enhancement by Gre factors.Nucleic acids research · 2025Article
- Mediation of metal chelation in cysteine-derived tetramate systems.Chemical science · 2021Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
Abstract
Multisubunit RNA polymerase, an enzyme that accomplishes transcription in all living organisms, is a potent target for antibiotics. The antibiotic streptolydigin inhibits RNA polymerase by sequestering the active center in a catalytically inactive conformation. Here, we show that binding of streptolydigin to RNA polymerase strictly depends on a noncatalytic magnesium ion which is likely chelated by the aspartate of the bridge helix of the active center. Substitutions of this aspartate may explain different sensitivities of bacterial RNA polymerases to streptolydigin. These results provide the first evidence for the role of noncatalytic magnesium ions in the functioning of RNA polymerase and suggest new routes for the modification of existing and the design of new inhibitors of transcription.
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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.