Setting up and operating a cryo-EM laboratory.

Area of Science:

• Structural Biology
• Biophysics
• Microscopy

Background:

• Cryo-electron microscopy (cryo-EM) has revolutionized structural biology since 2012, enabling atomic resolution of macromolecular assemblies.
• Advances allow for high-resolution imaging of cellular structures using electron tomography and sub-tomogram averaging.

Purpose of the Study:

• To outline the essential infrastructure and operational considerations for establishing a state-of-the-art cryo-electron microscopy laboratory.
• To detail the necessary equipment, lab design, and personnel for successful cryo-EM research.

Main Methods:

• Description of ideal cryo-EM laboratory setup, including multiple electron microscopes (300 kV, 200 kV, 120 kV) with direct electron detectors.
• Inclusion of ancillary specimen preparation equipment: light microscope, carbon coater, plasma cleaner, glow discharge unit, robotic freezer, and liquid nitrogen supply.
• Emphasis on lab design for space, storage, and high-speed data transfer via fiber optics to image-processing computers.

Main Results:

• The ideal cryo-EM facility comprises dedicated high-voltage electron microscopes, specialized sample preparation tools, and robust data handling capabilities.
• Effective lab management by a dedicated facility manager is crucial for maintaining instrument uptime, budget control, and user support.
• Budgetary constraints significantly influence the scale and sophistication of the cryo-EM infrastructure.

Conclusions:

• Successful cryo-electron microscopy research hinges on a well-equipped laboratory, efficient workflow, and expert management.
• The described infrastructure supports high-resolution structural determination of macromolecules and cellular components.
• Investment in appropriate technology and personnel is key to advancing structural biology through cryo-EM.