Increased mutagenesis and unique mutation signature associated with mitotic gene conversion.
Increased mutagenesis and unique mutation signature associated with mitotic gene conversion.
复制标题
DOI:
10.1126/science.1191125
复制
发表时间:
2010-07-02
期刊:
影响因子:
--
通讯作者:
Haber JE
中科院分区:
文献类型:
--
作者:
Hicks WM;Kim M;Haber JE
To examine the fidelity of DNA synthesis during double-strand break (DSB) repair in S. cerevisiae we studied gene conversion (GC) in which both strands of DNA are newly synthesized. The mutation rate increases up to 1400 times over spontaneous events, with a significantly different mutation signature. Especially prominent are microhomology-mediated template switches. Recombination-induced mutations are largely independent of mismatch repair, Polζ, Polη, and Pol32, but result from errors made by Polδ and Polε. These observations suggest that increased DSB frequencies in oncogene-activated mammalian cells may also increase the probability of acquiring mutations required for transition to a cancerous state.
登录
查看更多内容
影响因子:
3
作者:
Weinberg, RA
通讯作者:
Weinberg, RA
影响因子:
5.3
作者:
Smith, Catherine E.;Lam, Alicia F.;Symington, Lorraine S.
通讯作者:
Symington, Lorraine S.
影响因子:
4.8
作者:
Stith, Carrie M.;Sterling, Joan;Burgers, Peter M.
通讯作者:
Burgers, Peter M.
影响因子:
5.3
作者:
Wang, X;Ira, G;Haber, JE
通讯作者:
Haber, JE
影响因子:
4.5
作者:
Yang Y;Sterling J;Storici F;Resnick MA;Gordenin DA
通讯作者:
Gordenin DA