A Role for the Mre11-Rad50-Xrs2 Complex in Gene Expression and Chromosome Organization.
MRX/N
Mediator
SMC complexes
chromosomal interaction domains
chromosome folding
chromosome organization
coding and non-coding transcription control
nuclear pore
Journal
Molecular cell
ISSN: 1097-4164
Titre abrégé: Mol Cell
Pays: United States
ID NLM: 9802571
Informations de publication
Date de publication:
07 01 2021
07 01 2021
Historique:
received:
28
04
2020
revised:
03
11
2020
accepted:
05
11
2020
pubmed:
6
12
2020
medline:
28
1
2021
entrez:
5
12
2020
Statut:
ppublish
Résumé
Mre11-Rad50-Xrs2 (MRX) is a highly conserved complex with key roles in various aspects of DNA repair. Here, we report a new function for MRX in limiting transcription in budding yeast. We show that MRX interacts physically and colocalizes on chromatin with the transcriptional co-regulator Mediator. MRX restricts transcription of coding and noncoding DNA by a mechanism that does not require the nuclease activity of Mre11. MRX is required to tether transcriptionally active loci to the nuclear pore complex (NPC), and it also promotes large-scale gene-NPC interactions. Moreover, MRX-mediated chromatin anchoring to the NPC contributes to chromosome folding and helps to control gene expression. Together, these findings indicate that MRX has a role in transcription and chromosome organization that is distinct from its known function in DNA repair.
Identifiants
pubmed: 33278361
pii: S1097-2765(20)30788-7
doi: 10.1016/j.molcel.2020.11.010
pmc: PMC8112817
mid: NIHMS1700051
pii:
doi:
Substances chimiques
DNA-Binding Proteins
0
Multiprotein Complexes
0
RAD50 protein, S cerevisiae
0
Saccharomyces cerevisiae Proteins
0
XRS2 protein, S cerevisiae
0
Endodeoxyribonucleases
EC 3.1.-
Exodeoxyribonucleases
EC 3.1.-
MRE11 protein, S cerevisiae
EC 3.1.-
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
183-197.e6Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM112131
Pays : United States
Informations de copyright
Copyright © 2020 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Interests The authors declare no competing interests.
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