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Novel Insights Into The Multifaceted Roles Of Blm In The Maintenance Of Genome Stability, Vivek M. Shastri
Novel Insights Into The Multifaceted Roles Of Blm In The Maintenance Of Genome Stability, Vivek M. Shastri
USF Tampa Graduate Theses and Dissertations
Genomic instability is a hallmark of disorders in which DNA replication and repair genes are dysfunctional. The tumor suppressor RECQ helicase gene BLM encodes the 3’-5’ DNA Bloom syndrome helicase BLM, which plays important roles during DNA replication, recombination and repair to maintain genome stability. Mutations within BLM cause Bloom syndrome, an autosomal recessive disorder characterized by growth defects, immunodeficiency, >10-fold higher sister chromatid exchange compared to normal cells, and an increased predisposition to a wide range of cancers from an early age. Single nucleotide polymorphisms or SNPs in BLM have been reported to be associated with susceptibility to a …
Functional Analysis Of The Replication Fork Proteome Identifies Bet Proteins As Pcna Regulators, Sarah R. Wessel, Kareem N. Mohni, Jessica W. Luzwick, Huzefa Dungrawala, David Cortez
Functional Analysis Of The Replication Fork Proteome Identifies Bet Proteins As Pcna Regulators, Sarah R. Wessel, Kareem N. Mohni, Jessica W. Luzwick, Huzefa Dungrawala, David Cortez
Molecular Biosciences Faculty Publications
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 …