ArticleNature communications2024
The structure and catalytic mechanism of a pseudoknot-containing hammerhead ribozyme.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Structure and mechanism of HDV ribozymes revealing Lewis acid catalysis by a metal ion.Nature communications · 2026Article
- Chemical Modification Strategies for Therapeutic Oligonucleotides: Mechanism Compatibility, Design Trade-Offs, and Translational Barriers.Molecules (Basel, Switzerland) · 2026Review
- Synergistic Mn-MOF Activation of Pistol Ribozymes for Cancer Immunotherapy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Cat_Wiz: a stereochemistry-guided toolkit for locating, diagnosing, and annotating Mg2+ ions in RNA structures.Nucleic acids research · 2026Article
- Hammerhead Ribozymes: Structural Insights, Catalytic Mechanisms, and Cutting-Edge Applications in Synthetic Biology.International journal of molecular sciences · 2025Review
- A hammerhead ribozyme selects mechanically stable conformations for catalysis against viral RNA.Communications biology · 2025Article
- RNA Structure: Past, Future, and Gene Therapy Applications.International journal of molecular sciences · 2024Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
We have determined the crystal structure of a pseudoknot (PK)-containing hammerhead ribozyme that closely resembles the pistol ribozyme, with essentially identical secondary structure and connectivity. The activity is more sensitive to deletion of the G8 2'OH than to the absence of magnesium ions, indicating that the catalytic mechanism is the same as the extended hammerhead, and distinct from the pistol ribozyme. Here we show that nucleophilic attack is almost perfectly in-line, and the G8 2'OH is well positioned to act as general acid, being directed towards the O5' leaving group, and 2.9 Å away from it. Despite the similarity in overall structure to the pistol ribozyme, the local structure close to the cleavage site differs, and the PK hammerhead retains its unique mechanistic identity and demonstrates enhanced activity over other hammerhead ribozymes under standard conditions.
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Registered trials
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