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Related Experiment Video

Updated: Feb 12, 2026

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A light-triggered Time-Resolved X-ray Solution Scattering (TR-XSS) workflow with application to protein

Fatemeh Sabzian-Molaei1, Fredrik Orädd1, Konstantinos Magkakis1

  • 1Department of Chemistry, Umeå University, Sweden.

FEBS Open Bio
|February 11, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a new workflow for time-resolved X-ray solution scattering (TR-XSS) experiments. This method allows real-time structural analysis of dynamic protein changes under near-native conditions.

Keywords:
kinetic modelingprotein conformational dynamicsstructural refinementtime‐resolved X‐ray solution scattering (TR‐XSS)

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Area of Science:

  • Structural Biology
  • Biophysics
  • Biochemistry

Background:

  • Static high-resolution methods like cryo-EM and X-ray crystallography cannot capture dynamic structural changes.
  • Time-resolved X-ray solution scattering (TR-XSS) offers real-time structural characterization under near-native conditions.

Purpose of the Study:

  • To present a comprehensive workflow for light-triggered TR-XSS experiments.
  • To provide a practical framework for data collection, processing, kinetic analysis, and structural refinement.
  • To demonstrate the workflow's applicability to diverse protein systems using a calcium-transporting ATPase (LMCA1) as an example.

Main Methods:

  • Development and implementation of a workflow for light-triggered TR-XSS.
  • Utilizing synchrotron-based X-ray scattering techniques.
  • Accompanying Python scripts for data analysis and interpretation.

Main Results:

  • A complete workflow for TR-XSS experiments, from data collection to structural refinement, has been established.
  • The workflow includes data processing and kinetic analysis capabilities.
  • The protocol is validated using the LMCA1 membrane protein.

Conclusions:

  • The presented workflow provides a practical framework for conducting and analyzing TR-XSS experiments.
  • This methodology enables the study of dynamic and transient structural changes in proteins.
  • The approach is broadly applicable to various protein systems, advancing structural biology research.