Abstract:TopBP1 is a large scaffold protein with multiple functions in genome integrity. We previously identified a novel role for TopBP1 during M phase by showing that TopBP1 reduces carry-over of DNA damage to daughter cells. This function emerges as a critical backup pathway in BRCA deficient cells, yet many aspects of TopBP1 regulation during mitosis are unclear. The mitotic kinase PLK1 has been reported to interact with TopBP1 but the functional relevance of this is unclear. Here, we identify and characterize a co… Show more
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