Regulation of DNA Pairing in Homologous Recombination

被引：65

作者：

Daley, James M. ^{[1
]}

Gaines, William A. ^{[1
]}

Kwon, YoungHo ^{[1
]}

Sung, Patrick ^{[1
]}

机构：

[1] Yale Univ, Sch Med, Dept Mol Biophys & Biochem, New Haven, CT 06510 USA

来源：

COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY | 2014年 / 6卷 / 11期

基金：

美国国家卫生研究院;

关键词：

WERNER-SYNDROME PROTEIN; SYNDROME GENE-PRODUCT; RNA-POLYMERASE-II; SACCHAROMYCES-CEREVISIAE; CROSSING-OVER; END-RESECTION; CROSSOVER CONTROL; GENOME STABILITY; STRAND INVASION; SMC5/6; COMPLEX;

D O I：

10.1101/cshperspect.a017954

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Homologous recombination (HR) is a major mechanism for eliminating DNA double-strand breaks from chromosomes. In this process, the break termini are resected nucleolytically to form 30 ssDNA (single-strand DNA) overhangs. A recombinase (i.e., a protein that catalyzes homologous DNA pairing and strand exchange) assembles onto the ssDNA and promotes pairing with a homologous duplex. DNA synthesis then initiates from the 30 end of the invading strand, and the extended DNA joint is resolved via one of several pathways to restore the integrity of the injured chromosome. It is crucial that HR be carefully orchestrated because spurious events can create cytotoxic intermediates or cause genomic rearrangements and loss of gene heterozygosity, which can lead to cell death or contribute to the development of cancer. In this review, we will discuss how DNA motor proteins regulate HR via a dynamic balance of the recombination-promoting and -attenuating activities that they possess.

引用

页码：1 / 15

页数：15

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