Abstract
The Polycomb repressive complex 2 (PRC2) is a well-characterized chromatin regulator of transcription programs acting through H3K27me3 deposition. In mammals, there are two main versions of PRC2 complexes: PRC2-EZH2, which is prevalent in cycling cells, and PRC2-EZH1 where EZH1 replaces EZH2 in post-mitotic tissues. Stoichiometry of PRC2 complex is dynamically modulated during cellular differentiation and various stress conditions. Therefore, unraveling unique architecture of PRC2 complexes under specific biological context through comprehensive and quantitative characterization could provide insight into the underlying mechanistic molecular mechanism in regulation of transcription process. In this chapter, we describe an efficient method which combines tandem-affinity purification (TAP) with label-free quantitative proteomics strategy for studying PRC2-EZH1 complex architecture alterations and identifying novel protein regulators in post-mitotic C2C12 skeletal muscle cells.
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Liu, P., Zhang, H., Della Valle, F., Orlando, V. (2023). Dynamic Interactome of PRC2-EZH1 Complex Using Tandem-Affinity Purification and Quantitative Mass Spectrometry. In: Lanzuolo, C., Marasca, F. (eds) Polycomb Group Proteins. Methods in Molecular Biology, vol 2655. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3143-0_9
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DOI: https://doi.org/10.1007/978-1-0716-3143-0_9
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