期刊
NATURE CELL BIOLOGY
卷 12, 期 9, 页码 909-915出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncb2095
关键词
-
类别
资金
- German-Israeli Cooperation Project [DIP H.2.2]
- National Institutes of Health Cell Migration Consortium [U54 GM64346]
- ERC
Focal adhesions are integrin-based multiprotein complexes, several micrometres in diameter, that mechanically link the extracellular matrix with the termini of actin bundles. The molecular diversity of focal adhesions and their role in cell migration and matrix sensing has been extensively studied, but their ultrastructural architecture is still unknown. We present the first three-dimensional structural reconstruction of focal adhesions using cryo-electron tomography. Our analyses reveal that the membrane-cytoskeleton interaction at focal adhesions is mediated through particles located at the cell membrane and attached to actin fibres. The particles have diameters of 25 +/- 5 nm, and an average interspacing of approximately 45 nm. Treatment with the Rho-kinase inhibitor Y-27632 induces a rapid decrease in particle diameter, suggesting that they are highly mechanosensitive. Our findings clarify the internal architecture of focal adhesions at molecular resolution, and provide insights into their scaffolding and mechanosensory functions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据