Repair of strand breaks by homologous recombination.
Maria Jasin,Rodney Rothstein +1 more
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TLDR
The enzymology of the process is discussed, followed by studies on DSB repair in living cells, and a historical context for the current view of HR is provided and how DSBs are processed during HR as well as interactions with other D SB repair pathways are described.Abstract:
In this review, we discuss the repair of DNA double-strand breaks (DSBs) using a homologous DNA sequence (i.e., homologous recombination [HR]), focusing mainly on yeast and mammals. We provide a historical context for the current view of HR and describe how DSBs are processed during HR as well as interactions with other DSB repair pathways. We discuss the enzymology of the process, followed by studies on DSB repair in living cells. Whenever possible, we cite both original articles and reviews to aid the reader for further studies.read more
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Recombination, Pairing, and Synapsis of Homologs during Meiosis
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References
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A Simple Cipher Governs DNA Recognition by TAL Effectors
TL;DR: It is shown that a repeat-variable pair of residues specifies the nucleotides in the target site, one pair to one nucleotide, with no apparent context dependence, which represents a previously unknown mechanism for protein-DNA recognition that explains TAL effector specificity, enables target site prediction, and opens prospects for use of TAL effects in research and biotechnology.
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Highly efficient endogenous human gene correction using designed zinc-finger nucleases
Fyodor D. Urnov,Jeffrey C. Miller,Ya-Li Lee,Christian Beauséjour,Jeremy M. Rock,Sheldon Augustus,Andrew C. Jamieson,Matthew H. Porteus,Philip D. Gregory,Michael C. Holmes +9 more
TL;DR: It is shown that zinc-finger nucleases designed against an X-linked severe combined immune deficiency mutation in the IL2Rγ gene yielded more than 18% gene-modified human cells without selection, raising the possibility of strategies based on zinc- finger nucleases for the treatment of disease.
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Poly(adp-ribosyl)ation reactions in the regulation of nuclear functions
TL;DR: The total dependence of poly(ADP-ribose) synthesis on DNA strand breaks strongly suggests that this post-translational modification is involved in the metabolism of nucleic acids, and the presence of PARP in these multiprotein complexes clearly supports an important role for poly(ADE-ribosyl)ation reactions in DNA transactions.
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Meiosis-specific DNA double-strand breaks are catalyzed by Spo11, a member of a widely conserved protein family.
TL;DR: These findings strongly implicate Spo11 as the catalytic subunit of the meiotic DNA cleavage activity and provide direct evidence that the mechanism of meiotic recombination initiation is evolutionarily conserved.
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Mechanism of eukaryotic homologous recombination.
TL;DR: HR accessory factors that facilitate other stages of the Rad51- and Dmc1-catalyzed homologous DNA pairing and strand exchange reaction have also been identified.