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Updated: May 6, 2026

High-resolution Spatiotemporal Analysis of Receptor Dynamics by Single-molecule Fluorescence Microscopy
Published on: July 25, 2014
Visualization of lipid-receptor interactions on single cells by time-resolved imaging fluorescence microscopy
T W Gadella1, D J Arndt-Jovin, T M Jovin
1Department of Molecular Biology, Max Planck Institute for Biophysical Chemistry, P.O. Box 2841, D-37018, Göttingen, Germany.
Abstract:
The physical interaction between plasma-membrane lipids and the epidermal growth factor (EGF)-receptor was investigated on single A431 human epidermoid carcinoma cells by monitoring fluorescence resonance energy transfer (FRET) between exogeneously added fluorescein-EGF (donor) and 2-(4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-pentanoyl)-1-hexadecanoyl-sn-glycero-3-phosphocholine (Bodipy-PC, acceptor) using donor-photobleaching FRET-microscopy. The measured mean FRET-efficiency of 13% is indicative of such a physical interaction and exemplifies the great potential and sensitivity of time-resolved imaging fluorescence microscopy techniques for the study of lipid-receptor interactions on single cells.
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