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AIDing the pursuit of IgA diversity

Direct evaluation of the contribution of somatic hypermutation (SHM) to mucosal immunity has been hampered by the lack of models able to dissociate SHM from class-switch recombination, which are both dependent on the cytidine deaminase AID. A new mouse AID model now demonstrates the critical role of SHM in the control of gut bacteria.

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Figure 1: Lack of SHM impairs mucosal homeostasis and immunity.

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Correspondence to Andrea Cerutti.

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Chen, K., Cerutti, A. AIDing the pursuit of IgA diversity. Nat Immunol 12, 197–198 (2011). https://doi.org/10.1038/ni0311-197

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