53BP1 Enforces Distinct Pre- and Post-resection Blocks on Homologous Recombination.
Aging
/ drug effects
Animals
BRCA1 Protein
/ genetics
DNA Breaks, Double-Stranded
/ drug effects
DNA Damage
/ drug effects
Genomic Instability
/ drug effects
Homologous Recombination
/ drug effects
Mice
Mutation
/ drug effects
Poly(ADP-ribose) Polymerase Inhibitors
/ pharmacology
Rad51 Recombinase
/ genetics
Tumor Suppressor p53-Binding Protein 1
/ genetics
Ubiquitin-Protein Ligases
/ genetics
53BP1
BRCA1
PARPi
aging
cancer
homologous recombination
resection
shieldin
Journal
Molecular cell
ISSN: 1097-4164
Titre abrégé: Mol Cell
Pays: United States
ID NLM: 9802571
Informations de publication
Date de publication:
02 01 2020
02 01 2020
Historique:
received:
24
06
2019
revised:
17
08
2019
accepted:
20
09
2019
pubmed:
28
10
2019
medline:
28
3
2020
entrez:
27
10
2019
Statut:
ppublish
Résumé
53BP1 activity drives genome instability and lethality in BRCA1-deficient mice by inhibiting homologous recombination (HR). The anti-recombinogenic functions of 53BP1 require phosphorylation-dependent interactions with PTIP and RIF1/shieldin effector complexes. While RIF1/shieldin blocks 5'-3' nucleolytic processing of DNA ends, it remains unclear how PTIP antagonizes HR. Here, we show that mutation of the PTIP interaction site in 53BP1 (S25A) allows sufficient DNA2-dependent end resection to rescue the lethality of BRCA1
Identifiants
pubmed: 31653568
pii: S1097-2765(19)30729-4
doi: 10.1016/j.molcel.2019.09.024
pmc: PMC6993210
mid: NIHMS1543692
pii:
doi:
Substances chimiques
BRCA1 Protein
0
Poly(ADP-ribose) Polymerase Inhibitors
0
Tumor Suppressor p53-Binding Protein 1
0
Ubiquitin-Protein Ligases
EC 2.3.2.27
Rad51 Recombinase
EC 2.7.7.-
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, N.I.H., Intramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
26-38.e7Subventions
Organisme : Intramural NIH HHS
ID : Z01 BC010283-10
Pays : United States
Organisme : Intramural NIH HHS
ID : Z01 BC010959
Pays : United States
Organisme : Intramural NIH HHS
ID : Z01 BC010283
Pays : United States
Organisme : NCI NIH HHS
ID : P30 CA033572
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA227001
Pays : United States
Organisme : NINDS NIH HHS
ID : R01 NS037956
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA197506
Pays : United States
Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.
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