Complex regulation and function of activation-induced cytidine deaminase.

Complex regulation and function of activation-induced cytidine deaminase.
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DOI:
10.1016/j.it.2011.03.003
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发表时间:
2011-05
影响因子:
16.8
通讯作者:
Stavnezer J
Stavnezer J
中科院分区:
医学1区
文献类型:
--
作者:
Stavnezer J

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活化诱导的胞苷脱氨酶(AID)在响应免疫和感染的B细胞活化期间引发经历体细胞超突变(SHM)和类别转换重组(CSR)的IG基因中的突变和DNA断裂。这篇综述讨论了艾滋病的表达和活性是如何调节的,包括最近发现的艾滋病相互作用的蛋白质,可能会招募艾滋病免疫球蛋白(IG)基因,也允许它靶向两个DNA链。还讨论了越来越多的证据表明,AID与基因组中的许多非免疫球蛋白位点结合、突变并产生断裂,从而引发细胞转化和恶性肿瘤。
Activation-induced cytidine deaminase (AID) instigates mutations and DNA breaks in Ig genes undergoing somatic hypermutation (SHM) and class switch recombination (CSR) during B cell activation in response to immunization and infection. This review discusses how AID expression and activity are regulated, including recent discoveries of AID interacting proteins that might recruit AID to immunoglobulin (Ig) genes and also allow it to target both DNA strands. Also discussed is the accumulating evidence that AID binds to, mutates, and creates breaks at numerous non-Ig sites in the genome, initiating cell transformation and malignancies.
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