WHAT TO DO AT AN END - DNA DOUBLE-STRAND-BREAK REPAIR

被引:183
作者
WEAVER, DT [1 ]
机构
[1] HARVARD UNIV, SCH MED, DEPT MICROBIOL & MOLEC GENET, BOSTON, MA 02115 USA
关键词
D O I
10.1016/S0168-9525(00)89121-0
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Repairing chromosome breaks is essential to cell survival. A major lethal effect of ionizing radiation (IR) damage is the creation of double-strand DNA breaks. Recently, a number of mammalian cell mutants that are sensitive to IR damage have been described, revealing a unique repair pathway. The DNA-dependent protein kinase (DNA-PK) is necessary for double-strand-break repair and lymphoid V(D)J recombination. DNA-PK consists of three subunits: the Ku autoantigen heterodimer and a kinase (DNA-PKcs) that is deficient in mouse scid mutant cells.
引用
收藏
页码:388 / 392
页数:5
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