In a phosphorylation-dependent positive feedback loop, the cytidine deaminase AID amplifies the generation of double-strand DNA breaks, which shows it can also function downstream of deamination.
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Delker, R., Papavasiliou, F. You break it, you fix it: functions for AID downstream of deamination. Nat Immunol 14, 1112–1114 (2013). https://doi.org/10.1038/ni.2738
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DOI: https://doi.org/10.1038/ni.2738
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