Abstract
We report the observation of single-molecule colocalization and quantitative fluorescence resonant energy transfer by simultaneously imaging the emission and polarization characteristics of two colocalized fluorophores using a simple optical design. The methodology was tested using the ligand-receptor system streptavidin, fluorescence labeled with the dye Cy5, and biotin labeled with tetramethylrhodamine. Discrimination of the two dyes permitted the observation of single-pair fluorescence resonant energy transfer with an efficiency of 89%. The multidimensional character of our fluorescence microscopy combined with the robustness of our design provides a simple method suitable to study biomolecular interactions on the single molecule level.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 10:14 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 2:15 p.m.) |
Indexed | 1 year ago (Aug. 12, 2024, 9:16 a.m.) |
Issued | 24 years, 8 months ago (Dec. 11, 2000) |
Published | 24 years, 8 months ago (Dec. 11, 2000) |
Published Print | 24 years, 8 months ago (Dec. 11, 2000) |
@article{Cognet_2000, title={Simultaneous dual-color and dual-polarization imaging of single molecules}, volume={77}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1332414}, DOI={10.1063/1.1332414}, number={24}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Cognet, Laurent and Harms, Gregory S. and Blab, Gerhard A. and Lommerse, Piet H. M. and Schmidt, Thomas}, year={2000}, month=dec, pages={4052–4054} }