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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...

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Related Experiment Video

Updated: Jun 18, 2026

Live Cell Imaging and 3D Analysis of Angiotensin Receptor Type 1a Trafficking in Transfected Human Embryonic Kidney Cells Using Confocal Microscopy

Live Cell Imaging and 3D Analysis of Angiotensin Receptor Type 1a Trafficking in Transfected Human Embryonic Kidney Cells Using Confocal Microscopy

Published on: March 27, 2017

Live cell imaging analysis of receptor function.

Daniel C Worth¹, Maddy Parsons

¹Randall Division of Cell and Molecular Biophysics, Kings College London, London, UK.

Methods in Molecular Biology (Clifton, N.J.)

|December 4, 2009

Summary

This summary is machine-generated.

Cell surface receptors control cell responses to external signals. New microscopy methods allow scientists to observe receptor dynamics and locations in living cells for better understanding.

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Last Updated: Jun 18, 2026

Live Cell Imaging and 3D Analysis of Angiotensin Receptor Type 1a Trafficking in Transfected Human Embryonic Kidney Cells Using Confocal Microscopy

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Published on: March 27, 2017

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Fluorescence Biomembrane Force Probe: Concurrent Quantitation of Receptor-ligand Kinetics and Binding-induced Intracellular Signaling on a Single Cell

Fluorescence Biomembrane Force Probe: Concurrent Quantitation of Receptor-ligand Kinetics and Binding-induced Intracellular Signaling on a Single Cell

Published on: August 4, 2015

Area of Science:

Cell biology
Molecular biology
Biochemistry

Background:

Cell surface receptors mediate cellular responses to external stimuli like growth factors.
Receptor trafficking (endocytosis/exocytosis) and interactions with binding partners are key for dynamic signaling.
Understanding these processes is vital for comprehending cellular communication.

Purpose of the Study:

To review common microscopy techniques for studying cell surface receptor behavior in live cells.
To highlight how these techniques aid in understanding receptor dynamics, binding partners, and localization.

Main Methods:

Live-cell imaging techniques.
Advanced microscopy methods (e.g., fluorescence microscopy, confocal microscopy).
Methods for tracking receptor movement and interactions within the cell.

Main Results:

Live-cell microscopy enables visualization of receptor endocytosis, exocytosis, and trafficking.
These techniques allow for the identification of specific binding partners and sub-cellular localization of receptors.
Dynamic studies reveal how receptors respond to environmental changes.

Conclusions:

Modern microscopy techniques are powerful tools for investigating cell surface receptor behavior in real-time.
Studying receptor dynamics in living cells provides crucial insights into signal transduction pathways.
These methods advance our understanding of cellular responses to external cues.