A detailed understanding of a cellular process requires the knowledge about the interactions between its protein constituents. The Split-Ubiquitin technique allows to monitor and detect interactions of very diverse proteins, including transcription factors and membrane-associated proteins. The technique is based on unique features of ubiquitin, the enzymes of the ubiquitin pathway, and the reconstitution of a native-like ubiquitin from its N-and C-terminal fragments. Using Ura3p as a reporter for the reconstitution of the ubiquitin fragments, methods are presented that enable to screen in yeast for interaction partners of a given protein with either a randomly generated expression library or a defined but more limited array of protein fusions. © 2012 Springer Science+Business Media, LLC.
CITATION STYLE
Dünkler, A., Müller, J., & Johnsson, N. (2012). Detecting protein-protein interactions with the split-ubiquitin sensor. Methods in Molecular Biology, 786, 115–130. https://doi.org/10.1007/978-1-61779-292-2_7
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