AIDing antibody diversity by error-prone mismatch repair.

AIDing antibody diversity by error-prone mismatch repair.
复制标题

DOI:
10.1016/j.smim.2012.05.005
复制
发表时间:
2012-08
影响因子:
7.8
通讯作者:
Roa S
Roa S
中科院分区:
医学2区
文献类型:
--
作者:
Chahwan R;Edelmann W;Scharff MD;Roa S

文献摘要

参考文献

被引文献

相似文献

创建高度多样化的抗体库需要DNA增变因子(称为活化诱导脱氨酶(AID))的协同活性,再加上识别AID催化的DNA错配的易错修复过程。DNA错配修复(MMR)不是促进通常在整个基因组中发生的典型无错反应,而是参与促进免疫球蛋白(IG)基因处的A:T诱变和双链断裂的易错修复模式。因此,MMR能够复合AID活性的突变频率以及拓宽碱基突变的谱;从而增加抗体成熟的效率。我们在这里回顾目前的理解,这种MMR介导的过程,并描述如何MMR信号级联下游的AID发散在一个位点依赖的方式,甚至在IG基因座本身差异促进体细胞超突变(SHM)和类转换重组(CSR)在B细胞。
The creation of a highly diverse antibody repertoire requires the synergistic activity of a DNA mutator, known as activation-induced deaminase (AID), coupled with an error-prone repair process that recognizes the DNA mismatch catalyzed by AID. Instead of facilitating the canonical error-free response, which generally occurs throughout the genome, DNA mismatch repair (MMR) participates in an error-prone repair mode that promotes A:T mutagenesis and double-strand breaks at the immunoglobulin (Ig) genes. As such, MMR is capable of compounding the mutation frequency of AID activity as well as broadening the spectrum of base mutations; thereby increasing the efficiency of antibody maturation. We here review the current understanding of this MMR-mediated process and describe how the MMR signaling cascade downstream of AID diverges in a locus dependent manner and even within the Ig locus itself to differentially promote somatic hypermutation (SHM) and class switch recombination (CSR) in B cells.
DOI: 10.1016/j.dnarep.2008.02.001
发表时间: 2008-05-03
期刊: DNA REPAIR
影响因子: 3.8
作者:
Goehler, Thomas;Munoz, Ivan M.;Blow, J. Julian
通讯作者: Blow, J. Julian
DOI: 10.1038/ni1031
发表时间: 2004-02-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
作者:
Bardwell, PD;Woo, CJ;Scharff, MD
通讯作者: Scharff, MD
DOI: 10.1038/ni.1909
发表时间: 2010-09-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
作者:
Hasham, Muneer G.;Donghia, Nina M.;Mills, Kevin D.
通讯作者: Mills, Kevin D.
DOI: 10.1074/jbc.m609989200
发表时间: 2007-02-02
影响因子: 4.8
作者:
Cannavo, Elda;Gerrits, Bertran;Jiricny, Josef
通讯作者: Jiricny, Josef
DOI: 10.1038/nsmb.1639
发表时间: 2009-08
影响因子: 16.8
作者:
通讯作者: --