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Updated: Dec 18, 2025
Monitoring Kinase and Phosphatase Activities Through the Cell Cycle by Ratiometric FRET
Published on: January 27, 2012
Live-Cell FRET Imaging of Phosphorylation-Dependent Caveolin-1 Switch
Adriana M Zimnicka1, Zhenlong Chen2, Peter T Toth1,3
1Department of Pharmacology, University of Illinois at Chicago, Chicago, IL, USA.
Abstract:
The detection of dynamic conformational changes in proteins in live cells is challenging. Live-cell FRET (Förster Resonance Energy Transfer) is an example of a noninvasive technique that can be used to achieve this goal at nanometer resolution. FRET-based assays are dependent on the presence of fluorescent probes, such as CFP- and YFP-conjugated protein pairs. Here, we describe an experimental protocol in which live-cell FRET was used to measure conformational changes in caveolin-1 (Cav-1) oligomers on the surface of plasmalemma vesicles, or caveolae.
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