A PLA-iRoCS Pipeline for the Localization of Protein–Protein Interactions In Situ
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In plants as well as other organisms, protein localization alone is insufficient to provide a mechanistic link between stimulus and process regulation. This is because protein–protein interactions are central to the regulation of biological processes. However, they remain very difficult to detect in situ, with the choice of tools for the detection of protein–protein interaction in situ still in need of expansion. Here, we provide a protocol for the detection and accurate localization of protein interactions based on the combination of a whole-mount proximity ligation assay and iRoCS, a coordinate system able to standardize subtle differences between the architecture of individual Arabidopsis roots.
Key wordsProximity ligation assay iRoCS Protein complex Protein–protein interactions In situ In planta 3D imaging Root apical meristem Arabidopsis thaliana
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