A photoactivatable marker protein for pulse-chase imaging with superresolution

A photoactivatable marker protein for pulse-chase imaging with superresolution
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DOI:
10.1038/nmeth.1477
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发表时间:
2010-08-01
期刊:
影响因子:
48
通讯作者:
Nienhaus, G. Ulrich
Nienhaus, G. Ulrich
中科院分区:
生物学1区
文献类型:
--
作者:
Fuchs, Jochen;Boehme, Susan;Nienhaus, G. Ulrich

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IrisFP是一种可光活化的荧光蛋白,其结合了从绿色发射形式到红色发射形式的不可逆光转换以及两种形式的荧光和非荧光状态之间的可逆光开关。在这里,我们介绍了一个单体的变体,mIrisFP,并演示了它的多种光活化模式可以用于脉冲追逐实验结合亚衍射分辨率成像在活细胞中使用双色光活化定位显微镜(PALM)。
IrisFP is a photoactivatable fluorescent protein that combines irreversible photoconversion from a green- to a red-emitting form with reversible photoswitching between a fluorescent and a nonfluorescent state in both forms. Here we introduce a monomeric variant, mIrisFP, and demonstrate how its multiple photoactivation modes can be used for pulse-chase experiments combined with subdiffraction-resolution imaging in living cells by using dual-color photoactivation localization microscopy (PALM).