期刊
EMBO REPORTS
卷 1, 期 1, 页码 85-90出版社
WILEY
DOI: 10.1093/embo-reports/kvd002
关键词
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资金
- NIGMS NIH HHS [R01 GM039799, R01 GM39799, R01 GM041712] Funding Source: Medline
Biochemical analysis has shown that mammalian Rad51 and Rad52 interact and synergize in DNA recombination reactions in vitro, but these proteins have not been shown to function together in response to DNA damage in vivo. By analysis of murine cells expressing murine Rad52 tagged with green fluorescent protein (GFP)-Rad52, we now show that DNA damage causes Rad51 and GFP-Rad52 to colocalize in distinct nuclear foci. Cells expressing GFP-Rad52 show both increased survival and an increased number of Rad51 foci, raising the possibility that Rad52 is limiting for repair. These observations provide evidence of coordinated function of Rad51 and Rad52 in vivo and support the hypothesis that Rad52 plays an important role in the DNA damage response in mammalian cells.
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