53BP1 is required for class switch recombination.
53BP1 is required for class switch recombination.
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DOI:
10.1083/jcb.200403021
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发表时间:
2004-05-24
期刊:
影响因子:
--
通讯作者:
Chen J
中科院分区:
文献类型:
--
作者:
Ward IM;Reina-San-Martin B;Olaru A;Minn K;Tamada K;Lau JS;Cascalho M;Chen L;Nussenzweig A;Livak F;Nussenzweig MC;Chen J
53BP1 participates early in the DNA damage response and is involved in cell cycle checkpoint control. Moreover, the phenotype of mice and cells deficient in 53BP1 suggests a defect in DNA repair. Therefore, we asked whether or not 53BP1 would be required for the efficient repair of DNA double strand breaks. Our data indicate that homologous recombination by gene conversion does not depend on 53BP1. Moreover, 53BP1-deficient mice support normal V(D)J recombination, indicating that 53BP1 is not required for “classic” nonhomologous end joining. However, class switch recombination is severely impaired in the absence of 53BP1, suggesting that 53BP1 facilitates DNA end joining in a way that is not required or redundant for the efficient closing of RAG-induced strand breaks. These findings are similar to those observed in mice or cells deficient in the tumor suppressors ATM and H2AX, further suggesting that the functions of ATM, H2AX, and 53BP1 are closely linked.
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影响因子:
56.9
作者:
Celeste, A;Petersen, S;Nussenzweig, A
通讯作者:
Nussenzweig, A
影响因子:
9.8
作者:
Hendrickson, EA
通讯作者:
Hendrickson, EA
影响因子:
21.3
作者:
Fernandez-Capetillo, O;Chen, HT;Nussenzweig, A
通讯作者:
Nussenzweig, A
影响因子:
30.5
作者:
Ramiro, AR;Stavropoulos, P;Nussenzweig, MC
通讯作者:
Nussenzweig, MC
DOI:
10.1083/jcb.153.3.613
发表时间:
2001-04-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Rappold I;Iwabuchi K;Date T;Chen J
通讯作者:
Chen J