H4K20me0 marks post-replicative chromatin and recruits the TONSL–MMS22L DNA repair complex
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H4K20me0 marks post-replicative chromatin and recruits the TONSL–MMS22L DNA repair complex. / Saredi, Giulia; Huang, Hongda; Hammond, Colin M; Alabert, Constance; Bekker-Jensen, Simon; Forne, Ignasi; Reverón-Gómez, Nazaret; Foster, Benjamin M; Mlejnkova, Lucie; Bartke, Till; Cejka, Petr; Mailand, Niels; Imhof, Axel; Patel, Dinshaw J; Groth, Anja.
In: Nature, Vol. 534, No. 7609, 30.06.2016, p. 714-8.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - H4K20me0 marks post-replicative chromatin and recruits the TONSL–MMS22L DNA repair complex
AU - Saredi, Giulia
AU - Huang, Hongda
AU - Hammond, Colin M
AU - Alabert, Constance
AU - Bekker-Jensen, Simon
AU - Forne, Ignasi
AU - Reverón-Gómez, Nazaret
AU - Foster, Benjamin M
AU - Mlejnkova, Lucie
AU - Bartke, Till
AU - Cejka, Petr
AU - Mailand, Niels
AU - Imhof, Axel
AU - Patel, Dinshaw J
AU - Groth, Anja
PY - 2016/6/30
Y1 - 2016/6/30
N2 - After DNA replication, chromosomal processes including DNA repair and transcription take place in the context of sister chromatids. While cell cycle regulation can guide these processes globally, mechanisms to distinguish pre- and post-replicative states locally remain unknown. Here we reveal that new histones incorporated during DNA replication provide a signature of post-replicative chromatin, read by the human TONSL–MMS22L homologous recombination complex. We identify the TONSL ankyrin repeat domain (ARD) as a reader of histone H4 tails unmethylated at K20 (H4K20me0), which are specific to new histones incorporated during DNA replication and mark post-replicative chromatin until the G2/M phase of the cell cycle. Accordingly, TONSL–MMS22L binds new histones H3–H4 both before and after incorporation into nucleosomes, remaining on replicated chromatin until late G2/M. H4K20me0 recognition is required for TONSL–MMS22L binding to chromatin and accumulation at challenged replication forks and DNA lesions. Consequently, TONSL ARD mutants are toxic, compromising genome stability, cell viability and resistance to replication stress. Together, these data reveal a histone-reader-based mechanism for recognizing the post-replicative state, offering a new angle to understand DNA repair with the potential for targeted cancer therapy.
AB - After DNA replication, chromosomal processes including DNA repair and transcription take place in the context of sister chromatids. While cell cycle regulation can guide these processes globally, mechanisms to distinguish pre- and post-replicative states locally remain unknown. Here we reveal that new histones incorporated during DNA replication provide a signature of post-replicative chromatin, read by the human TONSL–MMS22L homologous recombination complex. We identify the TONSL ankyrin repeat domain (ARD) as a reader of histone H4 tails unmethylated at K20 (H4K20me0), which are specific to new histones incorporated during DNA replication and mark post-replicative chromatin until the G2/M phase of the cell cycle. Accordingly, TONSL–MMS22L binds new histones H3–H4 both before and after incorporation into nucleosomes, remaining on replicated chromatin until late G2/M. H4K20me0 recognition is required for TONSL–MMS22L binding to chromatin and accumulation at challenged replication forks and DNA lesions. Consequently, TONSL ARD mutants are toxic, compromising genome stability, cell viability and resistance to replication stress. Together, these data reveal a histone-reader-based mechanism for recognizing the post-replicative state, offering a new angle to understand DNA repair with the potential for targeted cancer therapy.
KW - Chromatin
KW - DNA Repair
KW - DNA Replication
KW - DNA-Binding Proteins
KW - Genomic Instability
KW - Histones
KW - Homologous Recombination
KW - Humans
KW - Lysine
KW - Methylation
KW - Models, Molecular
KW - Molecular Chaperones
KW - NF-kappa B
KW - Nuclear Proteins
KW - Protein Binding
KW - Protein Structure, Tertiary
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
U2 - 10.1038/nature18312
DO - 10.1038/nature18312
M3 - Journal article
C2 - 27338793
VL - 534
SP - 714
EP - 718
JO - Nature
JF - Nature
SN - 0028-0836
IS - 7609
ER -
ID: 165693562