A hierarchy of protein patterns robustly decodes cell shape information
A hierarchy of protein patterns robustly decodes cell shape information
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蛋白质模式的层次结构可以稳健地解码细胞形状信息
DOI:
10.1038/s41567-021-01164-9
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发表时间:
2021
期刊:
影响因子:
19.6
通讯作者:
Fakhri
中科院分区:
文献类型:
--
作者:
Wigbers;Brauns;Swartz;Fakhri
Many cellular processes, such as cell division, –, cell motility, wound healing and tissue folding,, rely on the precise positioning of proteins on the membrane. Such protein patterns emerge from a combination of protein interactions, transport, conformational state changes and chemical reactions at the molecular level. Recent experimental and theoretical work clearly demonstrates the role of geometry, including membrane curvature, –and local cytosolic-to-membrane ratios,, and advective cortical flow in modulating membrane protein patterns. However, it remains unclear how these proteins achieve robust spatiotemporal organization on the membrane during the dynamic cell shape changes involved in physiological processes. Here we use oocytes of the starfishPatiria miniataas a model system to elucidate a shape-adaptation mechanism that robustly controls spatiotemporal protein dynamics on the membrane in spite of cell shape deformations. By combining experiments with biophysical theory, we show how cell shape information contained in a cytosolic gradient can be decoded by a bistable regulator of the enzyme Rho, which is associated with contractility. This bistable front in turn controls a mechanochemical response by locally triggering excitable dynamics of Rho. We posit that such a shape-adaptation mechanism based on a hierarchy of protein patterns may constitute a general physical principle for cell shape sensing and control.
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影响因子:
4
作者:
Razzell W
通讯作者:
Razzell W
影响因子:
4.6
作者:
J. Curtiss;M. Mlodzik
通讯作者:
J. Curtiss;M. Mlodzik
DOI:
10.1073/pnas.77.1.462
发表时间:
1980-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
HARA, K;TYDEMAN, P;KIRSCHNER, M
通讯作者:
KIRSCHNER, M
影响因子:
--
作者:
T. Sawai
通讯作者:
T. Sawai
DOI:
10.1098/rstb.2017.0107
发表时间:
2018-05-26
期刊:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子:
--
作者:
Halatek J;Brauns F;Frey E
通讯作者:
Frey E