Optical control of membrane tethering and interorganellar communication at nanoscales.
Optical control of membrane tethering and interorganellar communication at nanoscales.
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纳米尺度膜束缚和细胞间通讯的光学控制
DOI:
10.1039/c7sc01115f
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发表时间:
2017-08-01
期刊:
影响因子:
8.4
通讯作者:
Huang Y
中科院分区:
文献类型:
--
作者:
He L;Jing J;Zhu L;Tan P;Ma G;Zhang Q;Nguyen NT;Wang J;Zhou Y;Huang Y
A light-controllable membrane tether to control protein subcellular localization and manipulate interorganellar contact sites at nanoscales. Endoplasmic reticulum (ER) forms an extensive intracellular membranous network in eukaryotes that dynamically connects and communicates with diverse subcellular compartments such as plasma membrane (PM) through membrane contact sites (MCSs), with the inter-membrane gaps separated by a distance of 10–40 nm. Phosphoinositides (PI) constitute an important class of cell membrane phospholipids shared by many MCSs to regulate a myriad of cellular events, including membrane trafficking, calcium homeostasis and lipid metabolism. By installing photosensitivity into a series of engineered PI-binding domains with minimal sizes, we have created an optogenetic toolkit (designated as ‘OptoPB’) to enable rapid and reversible control of protein translocation and inter-membrane tethering at MCSs. These genetically-encoded, single-component tools can be used as scaffolds for grafting lipid-binding domains to dissect molecular determinants that govern protein–lipid interactions in living cells. Furthermore, we have demonstrated the use of OptoPB as a versatile fusion tag to photomanipulate protein translocation toward PM for reprogramming of PI metabolism. When tethered to the ER membrane with the insertion of flexible spacers, OptoPB can be applied to reversibly photo-tune the gap distances at nanometer scales between the two organellar membranes at MCSs, and to gauge the distance requirement for the free diffusion of protein complexes into MCSs. Our modular optical tools will find broad applications in non-invasive and remote control of protein subcellular localization and interorganellar contact sites that are critical for cell signaling.
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影响因子:
64.5
作者:
Park CY;Hoover PJ;Mullins FM;Bachhawat P;Covington ED;Raunser S;Walz T;Garcia KC;Dolmetsch RE;Lewis RS
通讯作者:
Lewis RS
影响因子:
5.5
作者:
Balla, Tamas
通讯作者:
Balla, Tamas
影响因子:
64.5
作者:
McBride, HM;Rybin, V;Zerial, M
通讯作者:
Zerial, M
DOI:
10.1126/science.aab1370
发表时间:
2015-07-24
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Chung J;Torta F;Masai K;Lucast L;Czapla H;Tanner LB;Narayanaswamy P;Wenk MR;Nakatsu F;De Camilli P
通讯作者:
De Camilli P
影响因子:
4.8
作者:
Bird, Gary S.;DeHaven, Wayne I.;Smyth, Jeremy T.;Putney, James W., Jr.
通讯作者:
Putney, James W., Jr.