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Related Experiment Video

Updated: May 29, 2026

Single-Molecule Measurement of Protein Interaction Dynamics Within Biomolecular Condensates

Single-Molecule Measurement of Protein Interaction Dynamics Within Biomolecular Condensates

Published on: January 5, 2024

Time-dependent intermolecular interaction during protein reactions.

Masahide Terazima¹

¹Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan. mterazima@kuchem.kyoto-u.ac.jp

Physical Chemistry Chemical Physics : PCCP

|September 6, 2011

Summary

A new pulsed laser technique monitors intermolecular reaction kinetics by measuring time-dependent diffusion coefficients. This method successfully detects real-time biomolecular interactions like transient association and dissociation in solution.

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Using In Vitro Fluorescence Resonance Energy Transfer to Study the Dynamics Of Protein Complexes at a Millisecond Time Scale

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Published on: March 14, 2019

Area of Science:

Physical Chemistry
Biophysics
Chemical Kinetics

Background:

Monitoring reaction kinetics of intermolecular interactions is crucial for understanding complex biological and chemical processes.
Existing techniques may have limitations in real-time detection or sensitivity for transient events.

Purpose of the Study:

To present a novel method for monitoring reaction kinetics of intermolecular interactions.
To demonstrate the capability of this method in detecting time-dependent biomolecular interactions in real-time.

Main Methods:

Utilizes time-dependent diffusion coefficient measurements.
Employs the pulsed laser-induced transient grating (PITG) technique.
Analyzes transient association and dissociation reactions in solution.

Main Results:

Successfully detected time-dependent biomolecular interactions in real-time.
Demonstrated the ability to monitor reaction kinetics of intermolecular interactions.
Provided a detailed comparison with other existing techniques, highlighting unique features.

Conclusions:

The pulsed laser-induced transient grating method offers a powerful tool for real-time kinetic studies of intermolecular interactions.
This technique is particularly valuable for observing transient molecular events in solution.
The method provides unique insights compared to conventional approaches for kinetic analysis.