Screening fluorescent voltage indicators with spontaneously spiking HEK cells.
Screening fluorescent voltage indicators with spontaneously spiking HEK cells.
复制标题
筛选荧光电压指示器自发尖峰HEK细胞。
DOI:
10.1371/journal.pone.0085221
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Cohen AE
中科院分区:
文献类型:
--
作者:
Park J;Werley CA;Venkatachalam V;Kralj JM;Dib-Hajj SD;Waxman SG;Cohen AE
Development of improved fluorescent voltage indicators is a key challenge in neuroscience, but progress has been hampered by the low throughput of patch-clamp characterization. We introduce a line of non-fluorescent HEK cells that stably express NaV 1.3 and KIR 2.1 and generate spontaneous electrical action potentials. These cells enable rapid, electrode-free screening of speed and sensitivity of voltage sensitive dyes or fluorescent proteins on a standard fluorescence microscope. We screened a small library of mutants of archaerhodopsin 3 (Arch) in spiking HEK cells and identified two mutants with greater voltage-sensitivity than found in previously published Arch voltage indicators.
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