Highly Parallel Quantification and Compartment Localization of Transcription Factors and Nuclear Proteins
- PMID: 32101728
- DOI: 10.1016/j.celrep.2020.01.096
Highly Parallel Quantification and Compartment Localization of Transcription Factors and Nuclear Proteins
Abstract
Transcription factors and other chromatin-associated proteins are difficult to quantify comprehensively. Here, we combine facile nuclear sub-fractionation with data-independent acquisition mass spectrometry to achieve rapid, sensitive, and highly parallel quantification of the nuclear proteome in human cells. We apply this approach to quantify the response to acute degradation of BET bromodomains, revealing unexpected chromatin regulatory dynamics. The method is simple and enables system-level study of previously inaccessible chromatin and genome regulators.
Keywords: chromatin; data-independent acquisition; proteomics; small molecule degredation; transcription factors.
Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of Interests The MacCoss Lab at the University of Washington has a sponsored research agreement with Thermo Fisher Scientific, the manufacturer of the instrumentation used in this research. Additionally, M.J.M. is a paid consultant for Thermo Fisher Scientific. A patent application has been filed on the methods described.
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