Talin in mechanotransduction and mechanomemory at a glance.
Talin in mechanotransduction and mechanomemory at a glance.
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DOI:
10.1242/jcs.258749
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发表时间:
2021-10-15
影响因子:
4
通讯作者:
Schwartz MA
中科院分区:
文献类型:
--
作者:
Goult BT;Brown NH;Schwartz MA
Talins are cytoskeletal linker proteins that consist of an N-terminal head domain, a flexible neck region and a C-terminal rod domain made of 13 helical bundles. The head domain binds integrin β-subunit cytoplasmic tails, which triggers integrin conformational activation to increase affinity for extracellular matrix proteins. The rod domain links to actin filaments inside the cell to transmit mechanical loads and serves as a mechanosensitive signalling hub for the recruitment of many other proteins. The α-helical bundles function as force-dependent switches – proteins that interact with folded bundles are displaced when force induces unfolding, exposing previously cryptic binding sites for other ligands. This leads to the notion of a talin code. In this Cell Science at a Glance article and the accompanying poster, we propose that the multiple switches within the talin rod function to process and store time- and force-dependent mechanical and chemical information. Summary: Talin contains 13 force-dependent binary switches; this Cell at a Glance paper describes talin as a memory molecule where these switches confer molecular memory and information-processing functions.
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10.1073/pnas.2010292117
发表时间:
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影响因子:
11.1
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通讯作者:
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