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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Curr Opin Chem Biol. 2011 Nov 4;15(6):775–780. doi: 10.1016/j.cbpa.2011.10.011

Figure 1. Single Particle Tracking in reconstituted biophysical systems and living cells.

Figure 1

A. The investigation of motor proteins involves quantum dot labeling of the motor domain, and subsequently measuring the trajectory of the QD labeled motor along the cytoskeletal track. B. DNA-Protein interactions can be probed with one or multiple QD labeled proteins, where the DNA is immobilized, and the interactions or disruptions of one labeled protein with another can be ascertained by dynamic imaging. C. Single receptors can be easily labeled and tracked at the surface of the cell or during internalization (not illustrated).