期刊
NATURE REVIEWS IMMUNOLOGY
卷 12, 期 7, 页码 517-531出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nri3216
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资金
- US National Institutes of Health [AI 079705, AI 045011, AI 060573]
- [T32 CA 009054]
Class-switch DNA recombination (CSR) of the immunoglobulin heavy chain (IGH) locus is central to the maturation of the antibody response and crucially requires the cytidine deaminase AID. CSR involves changes in the chromatin state and the transcriptional activation of the IGH locus at the upstream and downstream switch (S) regions that are to undergo S-S DNA recombination. In addition, CSR involves the induction of AID expression and the targeting of CSR factors to S regions by 14-3-3 adaptors, and it is facilitated by the transcription machinery and by histone modifications. In this Review, we focus on recent advances regarding the induction and targeting of CSR and outline an integrated model of the assembly of macromolecular complexes that transduce crucial epigenetic information to enzymatic effectors of the CSR machinery.
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