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Protein Dynamics in Living Cells

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...

Applications Of NMR In Biology

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.

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Related Experiment Video

Updated: Mar 24, 2026

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST

Published on: November 2, 2018

NMR Methods to Study Dynamic Allostery.

Sarina Grutsch¹, Sven Brüschweiler², Martin Tollinger¹

¹Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria.

Plos Computational Biology

|March 11, 2016

Summary

Nuclear magnetic resonance (NMR) spectroscopy reveals dynamic protein behaviors. Advanced NMR methods now detail allosteric protein mechanisms and conformational ensembles, offering new insights into biological processes.

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Exploring Protein-Glycan Interactions: Advances in Nuclear Magnetic Resonance

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Published on: August 26, 2025

Area of Science:

Biophysics
Structural Biology
Biochemistry

Background:

Nuclear magnetic resonance (NMR) spectroscopy is a powerful tool for investigating molecular dynamics across various timescales (picoseconds to milliseconds).
Recent advancements in NMR hardware and methodologies have significantly improved the study of protein dynamics and allosteric mechanisms.
Understanding protein conformational ensembles is crucial for elucidating biological functions.

Purpose of the Study:

To provide an overview of influential NMR spectroscopic methods for characterizing equilibrium fluctuations in allosteric proteins.
To highlight how NMR advances enable detailed studies of allosteric mechanisms.
To demonstrate the integration of NMR with molecular simulations for atomistic-level mechanistic insights.

Main Methods:

Utilizing Nuclear Magnetic Resonance (NMR) spectroscopy to probe dynamic processes in proteins.
Applying advanced NMR techniques to characterize equilibrium fluctuations in both free and bound states of allosteric proteins.
Integrating experimental NMR data with computational molecular simulations.

Main Results:

NMR spectroscopy allows for the detailed characterization of dynamic processes in allosteric proteins.
Methodological advancements have increased the observable conformational space of proteins.
Combined NMR and simulation approaches provide atomistic-level understanding of allosteric mechanisms.

Conclusions:

NMR spectroscopy is essential for understanding the dynamics of allosteric proteins.
The integration of NMR with molecular simulations offers unprecedented mechanistic insights into allosteric phenomena.
Future research can leverage these integrated approaches to further unravel complex biological mechanisms.