E pluribus unum, no more: from one crystal, many conformations

Area of Science:

• Structural Biology
• Biophysics
• Computational Biology

Background:

• X-ray crystallography traditionally provides static snapshots of proteins.
• Understanding protein conformational heterogeneity is crucial for elucidating biological mechanisms.
• Recent advances enable capturing dynamic protein states.

Purpose of the Study:

• To highlight the integration of computational and experimental techniques in X-ray crystallography.
• To emphasize the importance of room temperature data collection for capturing functional conformations.
• To discuss the potential of X-ray free electron lasers for radiation damage-free data collection.

Main Methods:

• Application of distinct computational approaches to analyze X-ray crystallography datasets.
• Implementation of room temperature X-ray data collection strategies.
• Utilizing 'diffract and destroy' methods with X-ray free electron lasers.

Main Results:

• Computational methods are maturing for representing conformational heterogeneity.
• Alternative conformations, relevant to solution studies, are being identified.
• Room temperature data collection aids in sampling functionally relevant protein states.
• X-ray free electron lasers offer possibilities for radiation damage-free data collection.

Conclusions:

• X-ray crystallography can move beyond static representations to reveal dynamic protein behavior.
• Integrated experimental and computational advances are key to understanding protein conformational ensembles.
• The study of protein dynamics in crystals is essential for understanding biological function.