The dark side of homology-directed repair

AM Al-Zain, LS Symington - DNA repair, 2021 - Elsevier
DNA double strand breaks (DSB) are cytotoxic lesions that can lead to genome
rearrangements and genomic instability, which are hallmarks of cancer. The two main DSB …

RecA and DNA recombination: a review of molecular mechanisms

E Del Val, W Nasser, H Abaibou… - Biochemical Society …, 2019 - portlandpress.com
Recombinases are responsible for homologous recombination and maintenance of genome
integrity. In Escherichia coli, the recombinase RecA forms a nucleoprotein filament with the …

Dynamic processing of displacement loops during recombinational DNA repair

A Piazza, SS Shah, WD Wright, SK Gore, R Koszul… - Molecular cell, 2019 - cell.com
Displacement loops (D-loops) are pivotal intermediates of homologous recombination (HR),
a universal DNA double strand break (DSB) repair pathway. We developed a versatile assay …

Mechanisms of distinctive mismatch tolerance between Rad51 and Dmc1 in homologous recombination

J Xu, L Zhao, S Peng, H Chu, R Liang… - Nucleic Acids …, 2021 - academic.oup.com
Homologous recombination (HR) is a primary DNA double-strand breaks (DSBs) repair
mechanism. The recombinases Rad51 and Dmc1 are highly conserved in the RecA family; …

Defining the influence of Rad51 and Dmc1 lineage-specific amino acids on genetic recombination

JB Steinfeld, O Beláň, Y Kwon, T Terakawa… - Genes & …, 2019 - genesdev.cshlp.org
The vast majority of eukaryotes possess two DNA recombinases: Rad51, which is
ubiquitously expressed, and Dmc1, which is meiosis-specific. The evolutionary origins of this …

DMC1 attenuates RAD51-mediated recombination in Arabidopsis

O Da Ines, J Bazile, ME Gallego, CI White - PLoS Genetics, 2022 - journals.plos.org
Ensuring balanced distribution of chromosomes in gametes, meiotic recombination is
essential for fertility in most sexually reproducing organisms. The repair of the programmed …

Identification of fidelity-governing factors in human recombinases DMC1 and RAD51 from cryo-EM structures

SC Luo, HY Yeh, WH Lan, YM Wu, CH Yang… - Nature …, 2021 - nature.com
Both high-fidelity and mismatch-tolerant recombination, catalyzed by RAD51 and DMC1
recombinases, respectively, are indispensable for genomic integrity. Here, we use cryo-EM …

Repair of DNA double-strand breaks in plant meiosis: role of eukaryotic RecA recombinases and their modulators

C Emmenecker, C Mézard, R Kumar - Plant Reproduction, 2023 - Springer
Homologous recombination during meiosis is crucial for the DNA double-strand breaks
(DSBs) repair that promotes the balanced segregation of homologous chromosomes and …

[HTML][HTML] Real-time single-molecule visualization using DNA curtains reveals the molecular mechanisms underlying DNA repair pathways

S Kim, Y Kim, JY Lee - DNA repair, 2024 - Elsevier
The demand for direct observation of biomolecular interactions provides new insights into
the molecular mechanisms underlying many biological processes. Single-molecule imaging …

Mechanistic insight into crossing over during mouse meiosis

SE Peterson, S Keeney, M Jasin - Molecular cell, 2020 - cell.com
Crossover recombination is critical for meiotic chromosome segregation, but how
mammalian crossing over is accomplished is poorly understood. Here, we illuminate how …