Bin Chen

CIP2A–TOPBP1 complex and PP2A dynamically regulate Polθ recruitment and phosphorylation at mitotic DNA double-strand breaks

DNA double-strand breaks (DSBs) that occur during mitosis are primarily repaired by Polθ-mediated microhomology-mediated end joining (MMEJ). The CIP2A–TOPBP1 complex has been shown to tether broken chromatin at mitotic DSBs, but whether it coordinates with or functions independen...