AFM of biological complexes: what can we learn?

Area of Science:

• Biophysics
• Structural Biology
• Nanotechnology

Background:

• Biological complexes, including enzymes, viral capsids, and amyloids, exhibit diverse stability and composition.
• Understanding the structure and dynamics of these complexes is crucial for their biological function.
• Atomic force microscopy (AFM) is a powerful technique for visualizing nanoscale biological structures.

Purpose of the Study:

• To review the significance of AFM in studying the biology of selected non-membrane protein assemblies.
• To highlight AFM's ability to provide structural and dynamic information about biological complexes.
• To showcase AFM applications in nanomedicine and diagnostics.

Main Methods:

• Utilizing Atomic Force Microscopy (AFM) to probe non-membrane protein assemblies.
• Analyzing high-resolution structural data obtained from AFM imaging.
• Gathering dynamic information on complex formation, stability, and allosteric changes.

Main Results:

• AFM provides detailed structural insights into large biological particles.
• The method captures dynamic processes like complex assembly and functional conformational changes.
• Examples demonstrate AFM's role in advancing the understanding of complex biology and enabling diagnostic applications.

Conclusions:

• AFM is a versatile tool for investigating the structure, dynamics, and function of biological complexes.
• Its simplicity and high resolution make it valuable for both fundamental research and applied nanomedicine.
• AFM facilitates the development of novel diagnostic tools based on biological complex analysis.