Fluorescence imaging detection of nanodomain redox signaling events at organellar contacts.
Fluorescence imaging detection of nanodomain redox signaling events at organellar contacts.
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细胞器接触纳米域氧化还原信号事件的荧光成像检测。
DOI:
10.1016/j.xpro.2021.101119
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发表时间:
2022-03-18
期刊:
影响因子:
--
通讯作者:
Hajnóczky G
中科院分区:
文献类型:
--
作者:
Booth DM;Várnai P;Joseph SK;Hajnóczky G
This protocol describes how to visualize, detect, and analyze redox signals (oxidative bursts) at the ER-mitochondrial interface. It uses drug-inducible crosslinking to target the genetically encoded glutathione redox sensor Grx1roGFP2 to organellar contact sites to measure local redox changes associated with transient depolarizations of the mitochondrial membrane potential (flickers). The strategy allows imaging of the oxidized to reduced glutathione ratio (GSSG:GSH) in subcellular regions below the diffraction limit with good temporal resolution and minimum phototoxicity. Moreover, the strategy also applies to diverse parameters including pH, H2O2, and Ca2+. For complete details on the use and execution of this profile, please refer to and. Stepwise protocol for the use of interorganelle linkers to measure redox nanodomains Guidelines for the simultaneous imaging of mitochondrial flickers Measurement normalization strategies to determine redox kinetics This protocol describes how to visualize, detect, and analyze redox signals (oxidative bursts) at the ER-mitochondrial interface. It uses drug-inducible crosslinking to target the genetically encoded glutathione redox sensor Grx1roGFP2 to organellar contact sites to measure local redox changes associated with transient depolarizations of the mitochondrial membrane potential (flickers). The strategy allows imaging of the oxidized to reduced glutathione ratio (GSSG:GSH) in subcellular regions below the diffraction limit with good temporal resolution and minimum phototoxicity. Moreover, the strategy also applies to diverse parameters including pH, H2O2, and Ca2+.
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影响因子:
3.4
作者:
O'Reilly, CM;Fogarty, KE;Walsh, JV
通讯作者:
Walsh, JV
影响因子:
48
作者:
Gutscher, Marcus;Pauleau, Anne-Laure;Dick, Tobias P.
通讯作者:
Dick, Tobias P.
影响因子:
16
作者:
Csordás G;Várnai P;Golenár T;Roy S;Purkins G;Schneider TG;Balla T;Hajnóczky G
通讯作者:
Hajnóczky G
DOI:
10.1083/jcb.142.4.975
发表时间:
1998-08-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
Duchen MR;Leyssens A;Crompton M
通讯作者:
Crompton M
影响因子:
16
作者:
Booth DM;Enyedi B;Geiszt M;Várnai P;Hajnóczky G
通讯作者:
Hajnóczky G