Related Experiment Video
Updated: Jan 4, 2026
08:09
Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation
Published on: October 15, 2019
6.9K
Single-Molecule Analysis and Engineering of DNA Motors
Sonisilpa Mohapatra, Chang-Ting Lin, Xinyu A Feng
1Howard Hughes Medical Institute , Baltimore , Maryland 21205 , United States.
Chemical Reviews
|October 30, 2019
Summary
Single-molecule techniques reveal how molecular motors convert chemical energy into mechanical work for essential cellular functions. These methods also enable the engineering of novel motors with tailored properties.
Area of Science:
- Biochemistry
- Molecular Biology
- Biophysics
Background:
- Molecular motors are enzymes crucial for cellular processes like DNA replication and transport.
- Understanding their energy transduction mechanisms is vital for cell biology.
Purpose of the Study:
- To review single-molecule tools and techniques used to study molecular motors.
- To discuss applications in analyzing motor function and engineering new motors.
Main Methods:
- Optical and magnetic tweezers
- Atomic force microscopy (AFM)
- Single-molecule fluorescence resonance energy transfer (smFRET)
- Nanopore tweezers
- Hybrid techniques
Main Results:
- These techniques allow manipulation and observation of individual biomolecules and their conformational changes.
- Applications cover diverse motors including helicases, polymerases, and topoisomerases.
- Analysis of mechanochemical coupling facilitates the engineering of modified molecular motors.
Conclusions:
- Single-molecule studies provide deep insights into molecular motor function and energy transduction.
- Engineered motors offer new avenues for research and potential applications.
