The search for a homologous template is a fundamental, yet largely uncharacterized, reaction in DNA double-strand break repair. Two reports now demonstrate that broken chromosomes increase their movement and explore large volumes of nuclear space searching for a homologous template. Break mobility requires resection and recombination enzymes, as well as damage-checkpoint components.
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Ira, G., Hastings, P. DNA breakage drives nuclear search. Nat Cell Biol 14, 448–450 (2012). https://doi.org/10.1038/ncb2494
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DOI: https://doi.org/10.1038/ncb2494
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