Three-color Förster resonance energy transfer within single F₀F₁-ATP synthases: monitoring elastic deformations of the rotary double motor in real time.

  title={Three-color F{\"o}rster resonance energy transfer within single F₀F₁-ATP synthases: monitoring elastic deformations of the rotary double motor in real time.},
  author={Stefan Ernst and Monika G. D{\"u}ser and Nawid Zarrabi and Michael B{\"o}rsch},
  journal={Journal of biomedical optics},
  volume={17 1},
Catalytic activities of enzymes are associated with elastic conformational changes of the protein backbone. Förster-type resonance energy transfer, commonly referred to as FRET, is required in order to observe the dynamics of relative movements within the protein. Förster-type resonance energy transfer between two specifically attached fluorophores provides a ruler with subnanometer resolution between 3 and 8 nm, submillisecond time resolution for time trajectories of conformational changes… 

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