| Autor: |
Schirmeisen K; Institut Curie, Université PSL, CNRS UMR3348, 91400 Orsay, France.; Ligue Nationale Contre le Cancer (Équipe Labélisée), Université Paris-Saclay, CNRS UMR3348, 91400 Orsay, France., Lambert SAE; Institut Curie, Université PSL, CNRS UMR3348, 91400 Orsay, France.; Ligue Nationale Contre le Cancer (Équipe Labélisée), Université Paris-Saclay, CNRS UMR3348, 91400 Orsay, France., Kramarz K; Academic Excellence Hub-Research Centre for DNA Repair and Replication, University of Wrocław, 50-328 Wrocław, Poland. |
| Abstrakt: |
DNA lesions have properties that allow them to escape their nuclear compartment to achieve DNA repair in another one. Recent studies uncovered that the replication fork, when its progression is impaired, exhibits increased mobility when changing nuclear positioning and anchors to nuclear pore complexes, where specific types of homologous recombination pathways take place. In yeast models, increasing evidence points out that nuclear positioning is regulated by small ubiquitin-like modifier (SUMO) metabolism, which is pivotal to maintaining genome integrity at sites of replication stress. Here, we review how SUMO-based pathways are instrumental to spatially segregate the subsequent steps of homologous recombination during replication fork restart. In particular, we discussed how routing towards nuclear pore complex anchorage allows distinct homologous recombination pathways to take place at halted replication forks. |
