Document Type
Article
Publication Date
2019
Keywords
DNA replication, iPOND, ATAD5, BET domain, PCNA, chromatin, replisome, proteomics
Digital Object Identifier (DOI)
https://doi.org/10.1016/j.celrep.2019.08.051
Abstract
Identifying proteins that function at replication forks is essential to understanding DNA replication, chromatin assembly, and replication-coupled DNA repair mechanisms. Combining quantitative mass spectrometry in multiple cell types with stringent statistical cutoffs, we generated a high-confidence catalog of 593 proteins that are enriched at replication forks and nascent chromatin. Loss-of-function genetic analyses indicate that 85% yield phenotypes that are consistent with activities in DNA and chromatin replication or already have described functions in these processes. We illustrate the value of this resource by identifying activities of the BET family proteins BRD2, BRD3, and BRD4 in controlling DNA replication. These proteins use their extra-terminal domains to bind and inhibit the ATAD5 complex and thereby control the amount of PCNA on chromatin.
Rights Information
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Cell Reports, v. 28, issue 13, p. 3497-3509.e4
Scholar Commons Citation
Wessel, Sarah R.; Mohni, Kareem N.; Luzwick, Jessica W.; Dungrawala, Huzefa; and Cortez, David, "Functional Analysis of the Replication Fork Proteome Identifies BET Proteins as PCNA Regulators" (2019). Molecular Biosciences Faculty Publications. 106.
https://digitalcommons.usf.edu/bcm_facpub/106
