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Updated: Jan 20, 2026
08:28
Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
Published on: September 19, 2017
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Single-Molecule Investigations of G-Quadruplex
Shankar Mandal1, Mohammed Enamul Hoque1, Hanbin Mao2
1Department of Chemistry and Biochemistry, Kent State University, Kent, OH, USA.
Methods in Molecular Biology (Clifton, N.J.)
|August 25, 2019
Summary
G-quadruplexes exhibit diverse structures and complex dynamics, crucial for their biological roles. Single-molecule techniques provide unique insights into G-quadruplex stability, kinetics, and ligand interactions.
Area of Science:
- Biochemistry
- Structural Biology
- Molecular Biophysics
Background:
- G-quadruplexes are nucleic acid structures with significant biological roles.
- Their conformational diversity and complex dynamics necessitate advanced study methods.
- Understanding G-quadruplex stability and kinetics is vital for biological function.
Purpose of the Study:
- To detail the stability and transition kinetics of G-quadruplex structures.
- To explore the conformational diversity and interconversion of G-quadruplexes.
- To investigate G-quadruplexes and their ligand interactions using single-molecule methods.
Main Methods:
- Atomic Force Microscopy (AFM)
- Single-Molecule Fluorescence Resonance Energy Transfer (smFRET)
- Optical, magnetic, and magneto-optical tweezers
Main Results:
- Single-molecule tools offer high signal-to-noise ratio for G-quadruplex analysis.
- These methods enable investigation of thermodynamic, kinetic, and mechanical properties.
- Dynamic conformations of G-quadruplexes can be studied in detail.
Conclusions:
- Single-molecule techniques are powerful for elucidating G-quadruplex properties.
- These methods facilitate the study of G-quadruplexes and their interactions with ligands.
- Further research using these tools will enhance understanding of G-quadruplex biology.
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