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Nonreplicative Dna Helicases Involved In Maintaining Genome Stability, Salahuddin Syed
Nonreplicative Dna Helicases Involved In Maintaining Genome Stability, Salahuddin Syed
USF Tampa Graduate Theses and Dissertations
Double-strand breaks and stalled forks arise when the replication machinery encounters damage from exogenous sources like DNA damaging agents or ionizing radiation, and require specific DNA helicases to resolve these structures. Sgs1 of Saccharomyces cerevisiae is a member of the RecQ family of DNA helicases and has a role in DNA repair and recombination. The RecQ family includes human genes BLM, WRN, RECQL4, RECQL1, and RECQL5. Mutations in BLM, WRN, and RECQL4 result in genetic disorders characterized by developmental abnormalities and a predisposition to cancer. All RecQ helicases have common features including a …