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Updated: Nov 25, 2025
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Single Particle Cryo-Electron Microscopy: From Sample to Structure
Published on: May 29, 2021
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Seeing Atoms: Single-Particle Cryo-EM Breaks the Atomic Barrier
Yong Zi Tan1, Bridget Carragher2
1Molecular Medicine Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada.
Molecular Cell
|December 18, 2020
Summary
Structural biology aims to detail biological macromolecules. Advances in cryogenic electron microscopy (cryo-EM) have significantly improved resolution, enhancing our understanding of molecular interactions.
Area of Science:
- Structural biology
- Biophysics
- Molecular biology
Background:
- Understanding biological macromolecules at atomic or domain levels is crucial.
- Key techniques include X-ray crystallography, NMR imaging, and cryo-electron microscopy (cryo-EM).
- Cryo-EM has seen recent advancements, driving its popularity.
Purpose of the Study:
- To provide an overview of structural biology techniques.
- To highlight the impact of recent advances in cryo-EM.
- To explain the importance of structural resolution in understanding biological systems.
Main Methods:
- Overview of established structural biology techniques.
- Discussion of hardware and software developments in cryo-EM.
- Reference to the 'Resolution Revolution' in cryo-EM (Kühlbrandt, 2014).
Main Results:
- Structural biology provides insights at various resolutions.
- Cryo-EM has rapidly advanced due to technological improvements.
- These advances have led to unprecedented resolution levels.
Conclusions:
- Detailed understanding of macromolecules is essential in biology.
- Cryo-EM is a powerful and increasingly popular technique.
- Technological progress continues to drive discoveries in structural biology.
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