Explain fluorescence resonance energy transfer

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Fluorescence resonance energy transfer (FRET) is a common technique to measure distances between donor (D) and acceptor (A) fluorescent molecules. In the absence of A, the fluorescence lifetime of a protein labeled with D is 23 ns. In the presence of the A label on the protein, the lifetime falls to 18 ns. What is the distance between these two labels if the r0 for the pair is 34 Å?

Reference no: EM13333196

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