Abstract
Probe technology has been advancing very rapidly but to study molecular events in real time, there has to be a discrete choice in the use of "probes" and the "labels" that they carry. In this minireview, we shed light on the use of fluorescent probes, especially the use of green fluorescent protein (GFP) and its variants as tools to cell biologists studying protein secretion and trafficking. The use of these GFP variants has further widened the application of Fluorescence Resonance Energy Transfer (FRET) in analyzing protein-protein interaction.
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