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DNA damageinduced XPA nuclear import does not dependent on ATR and/or ATM in p53 deficient H1299 cancer cells. A. Cells transfected with control siRNA, ATR siRNA, and ATM siRNA were treated with UV (20 J/m2), followed by subcellular fractionation. The samples were then analyzed by Western blotting. B. ATR and ATM were simultaneously depleted by siRNA transfections, followed by UV irradiation of the cells (20 J/m2). Subcellular fractions were then subjected to Western blot analysis.
