Fluorescent Methods for Molecular Motors

  • Toseland C
  • Geeves M
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Abstract

Molecular machines are the workhorses of the cell that efficiently con- vert chemical energy into mechanical motion through conformational changes. They can be considered powerful machines, exerting forces and torque on the molecular level of several piconewtons and piconewton-nanometer, respectively. For studying translocation and conformational changes of these machines, fluores- cence methods, like FRET, as well as “mechanical” methods, like optical and magnetic tweezers, have proven well suited over the past decades. One of the current challenges in the field of molecular machines is gaining maximal informa- tion from single-molecule experiments by simultaneously measuring translocation, conformational changes, and forces exerted by these machines. In this chapter, we describe the combination of magnetic tweezers with single-molecule FRET for orthogonal simultaneous readout to maximize the information gained in single- molecule experiments. Keywords

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Toseland, C. P., & Geeves, M. a. (2014). Fluorescent Methods for Molecular Motors. (C. P. Toseland & N. Fili, Eds.), Springer Basel (Vol. 105, pp. 49–65). Basel: Springer Basel. Retrieved from http://link.springer.com/10.1007/978-3-0348-0856-9

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