Abstract
Many cellular proteins assemble into macromolecular protein complexes. Therefore, identifying protein–protein interactions (PPIs) is essential to gain insight into the function of proteins. Recently established quantitative mass spectrometry-based techniques have significantly improved the unbiased search for PPIs. In this chapter, we describe a single-step GFP affinity purification method combined with SILAC-based quantitative mass spectrometry that can be used to identify nuclear PPIs in mammalian cells.
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Acknowledgments
We thank members of the Vermeulen group and Nina Hubner for critical reading of the manuscript and fruitful discussions. Work in the Vermeulen group is supported by grants from the Netherlands Organisation for Scientific Research (VIDI and Cancer Genomics Centre (CGC)) and the Dutch Cancer Society (KWF).
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Baymaz, H.I., Spruijt, C.G., Vermeulen, M. (2014). Identifying Nuclear Protein–Protein Interactions Using GFP Affinity Purification and SILAC-Based Quantitative Mass Spectrometry. In: Warscheid, B. (eds) Stable Isotope Labeling by Amino Acids in Cell Culture (SILAC). Methods in Molecular Biology, vol 1188. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-1142-4_15
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DOI: https://doi.org/10.1007/978-1-4939-1142-4_15
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