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Replisome-­cohesin interfacing: a molecular perspective

By Sara Villa and Rodrigo Bermejo


27 p.-4 fig.-2 tab.Cohesion is established in S-phase through the action of key replisome factors as replication forks engage cohesin molecules. By holding sister chromatids together, cohesion critically assists both an equal segregation of the duplicated genetic material and an efficient repair of DNA breaks. Nonetheless, the molecular events leading the entrapment of nascent chromatids by cohesin during replication are only beginning to be understood. The authors describe here the essential structural features of the cohesin complex in connection to its ability to associate DNA molecules and review the current knowledge on the architectural-functional organization of the eukaryotic replisome, significantly advanced by recent biochemical and structural studies. In light of this novel insight, the authors discuss the mechanisms proposed to assist interfacing of replisomes with chromatin-bound cohesin complexes and elaborate on models for nascent chromatids entrapment by cohesin in the environment of the replication fork.This work was supported by the Ministry of Economy, Industry and Competitiveness -MINECO (BFU2014-52529-R and BFU2017-87013-R to R.B.) and the Spanish Formación del Personal Investigador (FPI) program (to S.V.-H.).Peer reviewe

Topics: DNA replication, Chromosome dynamics, Replication forks, Cohesin, Replisome structure, Sister chromatid cohesion
Publisher: John Wiley & Sons
Year: 2018
DOI identifier: 10.1002/bies.201800109
OAI identifier:
Provided by: Digital.CSIC
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