ABSTRACTSignal-dependent alternative splicing is important for regulating gene expression in eukaryotes, yet our understanding of how signals impact splicing mechanisms is limited. A model to address this issue is alternative splicing of Drosophila TAF1 pre-mRNA in response to camptothecin (CPT)-induced DNA damage signals. CPT treatment of Drosophila S2 cells causes increased inclusion of TAF1 alternative cassette exons 12a and 13a through an ATR signaling pathway. To evaluate the role of TAF1 premRNA sequenc…
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