Nature Biotechnology21, 1387 - 1395 (2003)
Published online: 31 October 2003; | doi:10.1038/nbt896
FRET imaging
Elizabeth A Jares-Erijman1
& Thomas M Jovin2
1
Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina. eli@qo.fcen.uba.ar
2
Department of Molecular Biology, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany. tjovin@gwdg.de
Förster (or Fluorescence) Resonance Energy Transfer (FRET) is unique in generating fluorescence signals sensitive to molecular conformation, association, and separation in the 1−10 nm range. We introduce a revised photophysical framework for the phenomenon and provide a systematic catalog of FRET techniques adapted to imaging systems, including new approaches proposed as suitable prospects for implementation. Applications extending from a single molecule to live cells will benefit from multidimensional microscopy techniques, particularly those adapted for optical sectioning and incorporating new algorithms for resolving the component contributions to images of complex molecular systems.
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