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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Curr Opin Biotechnol. 2009 Feb 11;20(1):37–44. doi: 10.1016/j.copbio.2009.01.001

Figure 1.

Figure 1

BRET occurs between a light-emitting protein (donor) and a fluorophore (acceptor) that can be (a) a fluorescent protein, (b) a small organic dye, or (c) an inorganic fluorescent nanoparticle (quantum dot).