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Brief Communication

Nature Structural & Molecular Biology 15, 1119–1121 (1 October 2008) | doi:10.1038/nsmb.1491

A torque component present in mitotic kinesin Eg5 revealed by three-dimensional tracking

Junichiro Yajima , Kana Mizutani & Takayuki Nishizaka

Mitotic kinesin Eg5 is a homotetrameric molecular motor that cross-links and slides microtubules. The extent to which Eg5 moves processively is not clear.