Molecular basis and cellular functions of vinculin-actin directional catch bonding.
Molecular basis and cellular functions of vinculin-actin directional catch bonding.
复制标题
黏着斑蛋白-肌动蛋白定向捕捉键的分子基础与细胞功能。
DOI:
10.1038/s41467-023-43779-x
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发表时间:
2023-12-14
影响因子:
16.6
通讯作者:
Campbell, Sharon L.
中科院分区:
文献类型:
--
作者:
Chirasani, Venkat R.;Khan, Mohammad Ashhar I.;Malavade, Juilee N.;Dokholyan, Nikolay V.;Hoffman, Brenton D.;Campbell, Sharon L.
The ability of cells and tissues to respond differentially to mechanical forces applied in distinct directions is mediated by the ability of load-bearing proteins to preferentially maintain physical linkages in certain directions. However, the molecular basis and biological consequences of directional force-sensitive binding remain unclear. Vinculin (Vcn) is a load-bearing linker protein that exhibits directional catch bonding due to interactions between the Vcn tail domain (Vt) and filamentous (F)-actin. We developed a computational approach to predict Vcn residues involved in directional catch bonding and produced a set of associated Vcn variants with unaltered Vt structure, actin binding, or phospholipid interactions. Incorporation of the variants did not affect Vcn activation but reduced Vcn loading and altered exchange dynamics, consistent with the loss of directional catch bonding. Expression of Vcn variants perturbed the coordination of subcellular structures and cell migration, establishing key cellular functions for Vcn directional catch bonding. This study provides insights into the directional catch bonding of the linker protein vinculin by elucidating the molecular basis of mechanical reinforcement as well as unveiling its key role in subcellular organization and cellular processes.
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影响因子:
3.7
作者:
Burridge K;Guilluy C
通讯作者:
Guilluy C
影响因子:
4.8
作者:
Cohen, DM;Chen, H;Craig, SW
通讯作者:
Craig, SW
DOI:
10.1098/rspb.1988.0038
发表时间:
1988-06-22
期刊:
PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子:
--
作者:
DEMBO, M;TORNEY, DC;HAMMER, D
通讯作者:
HAMMER, D
DOI:
10.1126/science.1254211
发表时间:
2014-10-31
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Buckley CD;Tan J;Anderson KL;Hanein D;Volkmann N;Weis WI;Nelson WJ;Dunn AR
通讯作者:
Dunn AR
影响因子:
64.8
作者:
通讯作者:
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