ArticleMethods in molecular biology (Clifton, N.J.)2021
Physical and Genetic Assays for the Study of DNA Joint Molecules Metabolism and Multi-invasion-Induced Rearrangements in S. cerevisiae.
Article in Methods in molecular biology (Clifton, N.J.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 5 citations in OpenAlex.
- Delineation of two multi-invasion-induced rearrangement pathways that differently affect genome stability.Genes & development · 2023Article
- Delineation of two multi-invasion-induced rearrangement pathways that differently affect genome stability.bioRxiv : the preprint server for biology · 2023Article
- Cohesin regulates homology search during recombinational DNA repair.Nature cell biology · 2021Article
- Double-strand breaks induce short-scale DNA replication and damage amplification in the fully grown mouse oocytes.Genetics · 2021Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
DNA double-strand breaks (DSBs) are genotoxic lesions that can be repaired in a templated fashion by homologous recombination (HR). HR is a complex pathway that involves the formation of DNA joint molecules (JMs) containing heteroduplex DNA. Various types of JMs are formed throughout the pathway, including displacement loops (D-loops), multi-invasions (MI), and double Holliday junction intermediates. Dysregulation of JM metabolism in various mutant contexts revealed the propensity of HR to generate repeat-mediated chromosomal rearrangements. Specifically, we recently identified MI-induced rearrangements (MIR), a tripartite recombination mechanism initiated by one end of a DSB that exploits repeated regions to generate rearrangements between intact chromosomal regions. MIR occurs upon MI-JM processing by endonucleases and is suppressed by JM disruption activities. Here, we detail two assays: a physical assay for JM detection in Saccharomyces cerevisiae cells and genetic assays to determine the frequency of MIR in various chromosomal contexts. These assays enable studying the regulation of the HR pathway and the consequences of their defects for genomic instability by MIR.
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