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Optical Sensors and Actuators for Probing Proximity-Dependent Biotinylation in Living Cells

Front Cell Neurosci. 2022-02; 
Rui Chen, Ningxia Zhang, Yubin Zhou, Ji Jing
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摘要

Proximity-dependent biotinylation techniques have been gaining wide applications in the systematic analysis of protein-protein interactions (PPIs) on a proteome-wide scale in living cells. The engineered biotin ligase TurboID is among the most widely adopted given its enhanced biotinylation efficiency, but it faces the background biotinylation complication that might confound proteomic data interpretation. To address this issue, we report herein a set of split TurboID variants that can be reversibly assembled by using light (designated "OptoID"), which enable optogenetic control of biotinylation based proximity labeling in living cells. OptoID could be further coupled with an engineered monomeric streptavidin t... More

关键词

OptoID, TurboID, biotinylation, optogenetics, proximity labeling