When a break occurs in the DNA double helix, it must be dealt with rapidly. The structure of one of the cellular machines responsible is now revealed, offering insights into its impressive speed and flexibility.
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Pyle, A. Big engine finds small breaks. Nature 432, 157–158 (2004). https://doi.org/10.1038/432157a
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DOI: https://doi.org/10.1038/432157a
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