Aurora A-dependent CENP-A phosphorylation at inner centromeres protects bioriented chromosomes against cohesion fatigue.
Aurora A-dependent CENP-A phosphorylation at inner centromeres protects bioriented chromosomes against cohesion fatigue.
复制标题
DOI:
10.1038/s41467-018-04089-9
复制
发表时间:
2018-05-14
影响因子:
16.6
通讯作者:
Jaulin C
中科院分区:
文献类型:
--
作者:
Eot-Houllier G;Magnaghi-Jaulin L;Fulcrand G;Moyroud FX;Monier S;Jaulin C
Sustained spindle tension applied to sister centromeres during mitosis eventually leads to uncoordinated loss of sister chromatid cohesion, a phenomenon known as “cohesion fatigue.” We report that Aurora A-dependent phosphorylation of serine 7 of the centromere histone variant CENP-A (p-CENP-AS7) protects bioriented chromosomes against cohesion fatigue. Expression of a non-phosphorylatable version of CENP-A (CENP-AS7A) weakens sister chromatid cohesion only when sister centromeres are under tension, providing the first evidence of a regulated mechanism involved in protection against passive cohesion loss. Consistent with this observation, p-CENP-AS7 is detected at the inner centromere where it forms a discrete domain. The depletion or inhibition of Aurora A phenocopies the expression of CENP-AS7A and we show that Aurora A is recruited to centromeres in a Bub1-dependent manner. We propose that Aurora A-dependent phosphorylation of CENP-A at the inner centromere protects chromosomes against tension-induced cohesion fatigue until the last kinetochore is attached to spindle microtubules. Sustained spindle tension applied to sister centromeres during mitosis leads to loss of sister chromatid cohesion which is known as cohesion fatigue. Here the authors show that Aurora A-dependent phosphorylation of CENP-A at the inner centromeres protects bioriented chromosomes against cohesion fatigue.
登录
查看更多内容
影响因子:
7.8
作者:
Kufer, Thomas A;Sillje, Herman H W;Korner, Roman;Gruss, Oliver J;Meraldi, Patrick;Nigg, Erich A
通讯作者:
Nigg, Erich A
影响因子:
64.8
作者:
Kitajima, TS;Sakuno, T;Watanabe, Y
通讯作者:
Watanabe, Y
影响因子:
3.3
作者:
Kang J;Chaudhary J;Dong H;Kim S;Brautigam CA;Yu H
通讯作者:
Yu H
影响因子:
9.2
作者:
Liu, Hong;Jia, Luying;Yu, Hongtao
通讯作者:
Yu, Hongtao
DOI:
10.1016/j.cub.2015.05.013
发表时间:
2015-07-20
期刊:
Current biology : CB
影响因子:
--
作者:
Chmátal L;Yang K;Schultz RM;Lampson MA
通讯作者:
Lampson MA