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Double-Strand Break Repair Pathways In Dna Structure-Induced Genetic Instability, Diem T. Kha
Double-Strand Break Repair Pathways In Dna Structure-Induced Genetic Instability, Diem T. Kha
Dissertations & Theses (Open Access)
Genetic instability in mammalian cells can occur by many different mechanisms. In the absence of exogenous sources of DNA damage, the DNA structure itself has been implicated in genetic instability. When the canonical B-DNA helix is naturally altered to form a non-canonical DNA structure such as a Z-DNA or H-DNA, this can lead to genetic instability in the form of DNA double-strand breaks (DSBs) (1, 2). Our laboratory found that the stability of these non-B DNA structures was different in mammals versus Escherichia coli (E.coli) bacteria (1, 2). One explanation for the difference between these species may be a result …