Challenges and opportunities in cryo-EM single-particle analysis

Area of Science:

• Structural Biology
• Biophysics
• Microscopy

Background:

• Cryo-electron microscopy (cryo-EM) has evolved significantly over four decades.
• Recent technical advancements have made cryo-EM accessible for molecular structural biology.
• Near-atomic resolution is now routinely achievable for many biological samples.

Purpose of the Study:

• To review key methods in cryo-electron microscopy.
• To focus on single-particle analysis (SPA) techniques.
• To identify challenges and future opportunities in cryo-EM methodology.

Main Methods:

• Review of established and emerging cryo-EM techniques.
• Emphasis on single-particle analysis (SPA) workflows.
• Discussion of image processing and data analysis strategies.

Main Results:

• Cryo-EM, particularly SPA, is a powerful tool for macromolecular structure determination.
• Routine analysis at near-atomic resolution is now feasible.
• Significant challenges remain, alongside novel opportunities for methodological development.

Conclusions:

• Continued advancements in cryo-EM are crucial for pushing the boundaries of structural biology.
• Addressing current challenges will unlock new avenues for molecular discovery.
• The field offers exciting prospects for methodology innovation and exploration.