What can myosin VI do in cells?
What can myosin VI do in cells?
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DOI:
10.1016/j.ceb.2006.12.005
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发表时间:
2007-02-01
影响因子:
7.5
通讯作者:
Houdusse, Anne
中科院分区:
文献类型:
--
作者:
Sweeney, H. Lee;Houdusse, Anne
The recently solved structure of the myosin VI motor demonstrates that the unique insert at the end of the motor is responsible for the reversal of the normal myosin directionality. A second class-specific insert near the nucleotide-binding pocket contributes to myosin VI's unique kinetic tuning, allowing it to function either as an actin-based transporter or as an anchoring protein. Recent biochemical and biophysical studies have shown that the native molecule can form dimers upon clustering, and cell biological studies have demonstrated that it clearly does play both transport and anchoring roles in cells. These mechanistic insights allow us to speculate on how unusual aspects of myosin VI structure and function allow it to fill unique niches in cells.