Imaging of Single Dye-Labeled Chemotaxis Proteins in Live Bacteria Using Electroporation.
Imaging of Single Dye-Labeled Chemotaxis Proteins in Live Bacteria Using Electroporation.
复制标题
使用电穿孔对活细菌中单染料标记的趋化蛋白进行成像。
DOI:
10.1007/978-1-4939-7577-8_19
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Di Paolo D
中科院分区:
文献类型:
--
作者:
Di Paolo D
For the last 2 decades, the use of genetically fused fluorescent proteins (FPs) has greatly contributed to the study of chemotactic signaling inE. coli, including the activation of the response regulator protein CheY and its interaction with the flagellar motor. However, this approach suffers from a number of limitations, both biological and biophysical. For example, not all fusions are fully functional when fused to a bulky FP, which can have a similar molecular weight to its fused counterpart. FPs may interfere with the native interactions of the protein, and their chromophores have low brightness and photostability, and fast photobleaching rates. Electroporation allows for internalization of purified CheY proteins labeled with organic dyes intoE. colicells in controllable concentrations. Using fluorescence video microscopy, it is possible to observe single CheY molecules diffusing within cells and interacting with the sensory clusters and the flagellar motors in real time.
影响因子:
46.2
作者:
Day RN;Davidson MW
通讯作者:
Davidson MW
影响因子:
3.4
作者:
Crawford, Robert;Torella, Joseph P.;Kapanidis, Achillefs N.
通讯作者:
Kapanidis, Achillefs N.
影响因子:
7.7
作者:
Rogala KB;Dynes NJ;Hatzopoulos GN;Yan J;Pong SK;Robinson CV;Deane CM;Gönczy P;Vakonakis I
通讯作者:
Vakonakis I