Crystal structure of the V(D)J recombinase RAG1-RAG2.
Crystal structure of the V(D)J recombinase RAG1-RAG2.
复制标题
DOI:
10.1038/nature14174
复制
发表时间:
2015-02-26
期刊:
影响因子:
64.8
通讯作者:
Gellert, Martin
中科院分区:
文献类型:
--
作者:
Kim, Min-Sung;Lapkouski, Mikalai;Yang, Wei;Gellert, Martin
V(D)J recombination in the vertebrate immune system generates a highly diverse population of immunoglobulins and T cell receptors by combinatorial joining of segments of coding DNA. The RAG1-RAG2 protein complex (RAG1/2) initiates this site-specific recombination by cutting DNA at specific sites flanking the coding segments. We report here the crystal structure of the RAG1/2 complex at 3.2Å resolution. The 230 kDa RAG1/2 heterotetramer is Y-shaped, with the N-terminal domains of the two RAG1 chains forming an intertwined stalk. Each RAG1/2 heterodimer composes one arm of the “Y” with the active site in the center and RAG2 at its tip. The RAG1/2 structure rationalizes more than 60 mutations identified in immunodeficient patients, as well as a large body of genetic and biochemical data. The architectural similarity between RAG1 and the hairpin-forming transposases Hermes and Tn5 suggests the evolutionary conservation of these DNA rearrangements.
登录
查看更多内容
影响因子:
5.6
作者:
Aravind, L;Koonin, EV
通讯作者:
Koonin, EV
影响因子:
64.8
作者:
Agrawal, A;Eastman, QM;Schatz, DG
通讯作者:
Schatz, DG
影响因子:
64.5
作者:
MCBLANE, JF;VANGENT, DC;OETTINGER, MA
通讯作者:
OETTINGER, MA
影响因子:
56.9
作者:
OETTINGER, MA;SCHATZ, DG;BALTIMORE, D
通讯作者:
BALTIMORE, D
影响因子:
14.9
作者:
CUOMO, CA;OETTINGER, MA
通讯作者:
OETTINGER, MA