CRL4(Cdt2)-mediated destruction of the histone methyltransferase Set8 prevents premature chromatin compaction in S phase.
CRL4(Cdt2)-mediated destruction of the histone methyltransferase Set8 prevents premature chromatin compaction in S phase.
复制标题
DOI:
10.1016/j.molcel.2010.09.015
复制
发表时间:
2010-10-08
期刊:
影响因子:
16
通讯作者:
Zou L
中科院分区:
文献类型:
--
作者:
Centore RC;Havens CG;Manning AL;Li JM;Flynn RL;Tse A;Jin J;Dyson NJ;Walter JC;Zou L
The proper coordination between DNA replication and mitosis during cell cycle progression is crucial for genomic stability. During G2 and mitosis, Set8 catalyzes monomethylation of histone H4 on lysine 20 (H4K20me1), which promotes chromatin compaction. Set8 levels decline in S phase, but why and how this occurs is unclear. Here, we show that Set8 is targeted for proteolysis in S phase and in response to DNA damage by the E3 ubiquitin ligase, CRL4Cdt2. Set8 ubiquitylation occurs on chromatin, and is coupled to DNA replication via a specific degron in Set8 that binds PCNA. Inactivation of CRL4Cdt2 leads to Set8 stabilization and aberrant H4K20me1 accumulation in replicating cells. Transient S phase expression of a Set8 mutant lacking the degron promotes premature H4K20me1 accumulation and chromatin compaction, and triggers a checkpoint-mediated G2 arrest. Thus, CRL4Cdt2-dependent destruction of Set8 in S phase preserves genome stability by preventing aberrant chromatin compaction during DNA synthesis.
登录
查看更多内容
影响因子:
4.8
作者:
Hu, J;Xiong, Y
通讯作者:
Xiong, Y
影响因子:
4.8
作者:
Houston, Sabrina I.;McManus, Kirk J.;Rice, Judd C.
通讯作者:
Rice, Judd C.
影响因子:
9.2
作者:
Fang, J;Feng, Q;Zhang, Y
通讯作者:
Zhang, Y
影响因子:
16
作者:
Nishioka, K;Rice, JC;Reinberg, D
通讯作者:
Reinberg, D
DOI:
10.1083/jcb.200706150
发表时间:
2007-12-31
期刊:
The Journal of cell biology
影响因子:
--
作者:
Jørgensen S;Elvers I;Trelle MB;Menzel T;Eskildsen M;Jensen ON;Helleday T;Helin K;Sørensen CS
通讯作者:
Sørensen CS