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Updated: Apr 7, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Integral membrane proteins and free electron lasers - a compatible couple indeed!
1Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0886, USA.
Serial femtosecond crystallography determined structures of membrane transport proteins with ligands. This method shows promise for future drug discovery and ligand screening.
Area of Science:
- Structural biology
- Biophysics
- Drug discovery
Background:
- Membrane transport proteins are crucial for cellular function.
- Understanding their structure-ligand interactions is key to drug development.
Purpose of the Study:
- To present structures of membrane transport proteins bound to ligands.
- To assess the feasibility of serial femtosecond crystallography for ligand screening.
Main Methods:
- Serial femtosecond crystallography (SFX) using microcrystals.
- X-ray free-electron laser (XFEL) source.
- Data quality assessment and refinement from low-redundancy data.
Main Results:
- Determined structures of membrane transport proteins complexed with mechanistically-relevant ligands.
- Investigated data processing strategies for low-redundancy XFEL data.
- Demonstrated the potential of SFX for structural studies.
Conclusions:
- Serial femtosecond crystallography is a viable technique for determining membrane protein structures.
- This approach is feasible for high-throughput ligand screening in drug discovery.
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