Analysis of repair of replication-born double-strand breaks by sister chromatid recombination in yeast

The repair of DNA double-strand breaks is crucial for cell viability and the maintenance of genome integrity. When present, the intact sister chromatid is used as the preferred repair template to restore the genetic information by homologous recombination. Although the study of the factors involved...

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Detalles Bibliográficos
Autores: Gómez González, Belén, Ortega Moreno, Pedro, Aguilera López, Andrés
Tipo de recurso: capítulo de libro
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/127819
Acceso en línea:https://hdl.handle.net/11441/127819
https://doi.org/10.1016/bs.mie.2021.08.010
Access Level:acceso abierto
Palabra clave:Double-strand break
DSB repair
Replication
Replication-born DSB
Sister chromatid exchange
Sister chromatid recombination
Descripción
Sumario:The repair of DNA double-strand breaks is crucial for cell viability and the maintenance of genome integrity. When present, the intact sister chromatid is used as the preferred repair template to restore the genetic information by homologous recombination. Although the study of the factors involved in sister chromatid recombination is hampered by the fact that both sister chromatids are indistinguishable, genetic and molecular systems based on DNA repeats have been developed to overcome this problem. In particular, the use of site-specific nucleases capable of inducing DNA nicks that replication converts into double-strand breaks has enabled the specific study of the repair of such replication-born double strand breaks by sister chromatid recombination. In this chapter, we describe detailed protocols for determining the efficiency and kinetics of this recombination reaction as well as for the genetic quantification of recombination products.