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Break-induced replication: an unhealthy choice for stress relief?

Determining the molecular mechanisms responsible for trinucleotide DNA repeat expansions is critical, as such expansions underlie many neuromuscular and neurodegenerative disorders. Mirkin and colleagues now propose that large-scale expansions of trinucleotide repeats can be generated by DNA-break-induced replication.

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Figure 1: Origin and consequences of break-induced replication.

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Acknowledgements

This work was supported by NIGMS (grant GM084242).

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Correspondence to Anna Malkova.

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Kramara, J., Osia, B. & Malkova, A. Break-induced replication: an unhealthy choice for stress relief?. Nat Struct Mol Biol 24, 11–12 (2017). https://doi.org/10.1038/nsmb.3361

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