Protein interaction screening by quantitative immunoprecipitation combined with knockdown (QUICK)
- 29 October 2006
- journal article
- research article
- Published by Springer Nature in Nature Methods
- Vol. 3 (12) , 981-983
- https://doi.org/10.1038/nmeth972
Abstract
Present screening methods for protein-protein interactions (PPIs) rely on the overexpression of artificial fusion proteins, making it difficult to assess in vivo relevance. Here we combine stable isotope labeling with amino acids in cell culture (SILAC), RNA interference (RNAi), coimmunoprecipitation and quantitative mass-spectrometry analysis to detect cellular interaction partners of endogenous proteins in mammalian cells with very high confidence. We used this screen to identify interaction partners of β-catenin and Cbl.Keywords
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