Dynamic Visualization of mTORC1 Activity in Living Cells.
Dynamic Visualization of mTORC1 Activity in Living Cells.
复制标题
活细胞中 mTORC1 活性的动态可视化。
DOI:
10.1016/j.celrep.2015.02.031
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发表时间:
2015
期刊:
影响因子:
8.8
通讯作者:
Zhang,Jin
中科院分区:
文献类型:
--
作者:
Zhou,Xin;Clister,TerriL;Lowry,PamelaR;Seldin,MarcusM;Wong,GWilliam;Zhang,Jin
The mechanistic target of rapamycin complex 1 (mTORC1) senses diverse signals to regulate cell growth and metabolism. It has become increasingly clear that mTORC1 activity is regulated in time and space inside the cell, but direct interrogation of such spatiotemporal regulation is challenging. Here, we describe a genetically encoded mTORC1 activity reporter (TORCAR) that exhibits a change in FRET in response to phosphorylation by mTORC1. Co-imaging mTORC1 activity and calcium dynamics revealed that a growth-factor-induced calcium transient contributes to mTORC1 activity. Dynamic activity maps generated with the use of subcellularly targeted TORCAR uncovered mTORC1 activity not only in cytosol and at the lysosome but also in the nucleus and at the plasma membrane. Furthermore, a wide distribution of activities was observed upon growth factor stimulation, whereas leucine ester, an amino acid surrogate, induces more compartmentalized activities at the lysosome and in the nucleus. Thus, mTORC1 activities are spatiotemporally regulated in a signal-specific manner.
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影响因子:
21.3
作者:
通讯作者:
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影响因子:
16.6
作者:
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通讯作者:
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作者:
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Thomas, George
DOI:
10.1073/pnas.0405659101
发表时间:
2004-09-14
影响因子:
11.1
作者:
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通讯作者:
Blenis, J
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16
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Partovian, Chohreh;Ju, Rong;Zhuang, Zhen W.;Martin, Kathleen A.;Simons, Michael
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Simons, Michael