Moving beyond static snapshots: Protein dynamics and the Protein Data Bank

Area of Science:

• Biochemistry and Molecular Biology
• Structural Biology

Background:

• Proteins function as the molecular machinery of life.
• Protein dynamics are crucial for biological functions and evolutionary selection.
• Observing protein dynamics provides mechanistic insights into structure-function relationships.

Purpose of the Study:

• To highlight advancements in observing and understanding protein dynamics.
• To connect protein structure, dynamics, and function through case studies.
• To showcase new techniques for visualizing protein mechanisms.

Main Methods:

• Time-resolved crystallography for dynamic "movies" of proteins.
• Cryo-electron microscopy (cryo-EM) for mapping protein variations.
• Utilizing case studies from myoglobin and adenylate kinase to molecular motors.
• Leveraging Protein Data Bank (PDB) for data dissemination.

Main Results:

• Emerging techniques allow visualization of proteins in action.
• New methods provide more complete descriptions of molecular machines.
• Progress in observing dynamics strengthens links between protein structure, dynamics, and function.

Conclusions:

• Observing protein dynamics is becoming increasingly feasible.
• Advancements in imaging and data sharing are revolutionizing structural biology.
• Understanding protein dynamics is essential for deciphering biological mechanisms.