Chapter title |
Tandem Affinity Purification Approach Coupled to Mass Spectrometry to Identify Post-translational Modifications of Histones Associated with Chromatin-Binding Proteins.
|
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Chapter number | 2 |
Book title |
Eukaryotic Transcriptional and Post-Transcriptional Gene Expression Regulation
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Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-6518-2_2 |
Pubmed ID | |
Book ISBNs |
978-1-4939-6516-8, 978-1-4939-6518-2
|
Authors |
Sophie Beyer, Philippe Robin, Slimane Ait-Si-Ali |
Editors |
Narendra Wajapeyee, Romi Gupta |
Abstract |
Protein purification by tandem affinity purification (TAP)-tag coupled to mass spectrometry analysis is usually used to reveal protein complex composition. Here we describe a TAP-tag purification of chromatin-bound proteins along with associated nucleosomes, which allow exhaustive identification of protein partners. Moreover, this method allows exhaustive identification of the post-translational modifications (PTMs) of the associated histones. Thus, in addition to partner characterization, this approach reveals the associated epigenetic landscape that can shed light on the function and properties of the studied chromatin-bound protein. |
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