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Comment
. 2008 Dec 12;135(6):1000-1.
doi: 10.1016/j.cell.2008.11.021.

Counting motors by force

Daniel St Johnston  1
Affiliations
Free article
Comment

Counting motors by force

Daniel St Johnston. Cell. .
Free article

Abstract

Properties of the microtubule motor protein kinesin-1 have been well characterized in vitro but not in the viscous environment of a cell. By measuring the force that kinesin-1 exerts on lipid droplets in fly embryos, Shubeita et al. (2008) determine the number of active motors per droplet and find unexpected differences between motor regulation in vivo and in vitro.

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