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. 2014 Jan 1;25(1):66–75. doi: 10.1091/mbc.E13-04-0200

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© 2014 Clayton et al. This article is distributed by The American Society for Cell Biology under license from the author(s). Two months after publication it is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

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FIGURE 2: — Fission yeast tropomyosin is required for transport of single Myo52p molecules along actin filaments. Processive movement of Myo52p-HMM molecules coupled to Qdots (1:10 M ratio) along rhodamine-phalloidin–labeled actin filaments using TIRF microscopy. (A) Movement of a Myo52p-Qdot (green) along a Cdc8p-decorated actin filament (red). Bar, 4 μm. Other representative events are presented in Supplemental Movie S1. (B) Kymograph showing a typical Myo52p-Qdot run along an actin-Cdc8p filament. (C) Histogram of the speed distribution of Myo52p-Qdots. (D) Run length histogram of Myo52p-Qdots moving on Cdc8p-actin tracks. The red curve shows the exponential fit (y = Ae^−x/λ), which yields the run length λ.