Structural Studies of DNA End Detection and Resection in Homologous Recombination

Perspect Biol., 2014, doi: 10.1101/cshperspect.a017962, published on 31.07.2014
Perspect Biol., online article
DNA double-strand breaks are repaired by two major pathways, homologous recombination or nonhomologous end joining. The commitment to one or the other pathway proceeds via different steps of resection of the DNA ends, which is controlled and executed by a set of DNA double-strand break sensors, endo- and exonucleases, helicases, and DNA damage response factors. The molecular choreography of the underlying protein machinery is beginning to emerge. In this review, we discuss the early steps of genetic recombination and double-strand break sensing with an emphasis on structural and molecular studies.  

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