ArticleNucleic acids research2022
Dissection of nanoconfinement and proximity effects on the binding events in DNA origami nanocavity.
Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 16 citations in OpenAlex.
- G-Quadruplexes: Structural Diversity and Emerging Roles in Biomolecular Condensation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Article
- Breakdown of Langmuir Adsorption Isotherm in Small Closed Systems.Langmuir : the ACS journal of surfaces and colloids · 2024Article
- Multimerizations, Aggregation, and Transfer Reactions of Small Numbers of Molecules.Journal of chemical information and modeling · 2023Article
- Zeptoliter DNA Origami Reactor to Reveal Cosolute Effects on Nanoconfined G-Quadruplexes.The journal of physical chemistry letters · 2022Article
- Mechanosensing view of SARS-CoV-2 infection by a DNA nano-assembly.Cell reports. Physical science · 2022Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Both ligand binding and nanocavity can increase the stability of a biomolecular structure. Using mechanical unfolding in optical tweezers, here we found that a DNA origami nanobowl drastically increased the stability of a human telomeric G-quadruplex bound with a pyridostatin (PDS) ligand. Such a stability change is equivalent to >4 orders of magnitude increase (upper limit) in binding affinity (Kd: 490 nM → 10 pM (lower limit)). Since confined space can assist the binding through a proximity effect between the ligand-receptor pair and a nanoconfinement effect that is mediated by water molecules, we named such a binding as mechanochemical binding. After minimizing the proximity effect by using PDS that can enter or leave the DNA nanobowl freely, we attributed the increased affinity to the nanoconfinement effect (22%) and the proximity effect (78%). This represents the first quantification to dissect the effects of proximity and nanoconfinement on binding events in nanocavities. We anticipate these DNA nanoassemblies can deliver both chemical (i.e. ligand) and mechanical (i.e. nanocavity) milieus to facilitate robust mechanochemical binding in various biological systems.
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Registered trials
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