Determining the role of R-loops in transcription-associated mutagenesis
Brooks, Laura
Brooks, Laura
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Abstract
DNA mutations are the leading cause of cancer, arising from endogenous and exogenous sources. My research focuses on transcription-associated mutagenesis (TAM) of human DNA, an understudied cancer etiology. Our lab hypothesizes that R-loops (RNA/DNA hybrids) affect the occurrence of transcription-associated large insertion and deletion mutations by contributing to double-strand break formation. To test this hypothesis, I am generating knockouts of SETX and XPF, two genes involved in R-loop processing. By characterizing these knockouts, I will determine if TAM mutation rates increase with elevated R-loop accumulation and decrease with the loss of XPF-mediated R-loop processing as predicted.
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Date
2025-06-02
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Undergraduate
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Poster Presentation
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Environmental Studies
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College of Agriculture and Life Sciences
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Life Sciences