Xenopus laevis M18BP1 Directly Binds Existing CENP-A Nucleosomes to Promote Centromeric Chromatin Assembly.
Xenopus laevis M18BP1 Directly Binds Existing CENP-A Nucleosomes to Promote Centromeric Chromatin Assembly.
复制标题
DOI:
10.1016/j.devcel.2017.06.021
复制
发表时间:
2017-07-24
影响因子:
11.8
通讯作者:
Straight AF
中科院分区:
文献类型:
--
作者:
French BT;Westhorpe FG;Limouse C;Straight AF
Vertebrate centromeres are epigenetically defined by nucleosomes containing the histone H3 variant, CENP-A. CENP-A nucleosome assembly requires the three-protein Mis18 complex (Mis18α, Mis18β, and M18BP1) that recruits the CENP-A chaperone HJURP to centromeres, but how the Mis18 complex recognizes centromeric chromatin is unknown. Using Xenopus egg extract, we show that direct, cell cycle-regulated binding of M18BP1 to CENP-A nucleosomes recruits the Mis18 complex to interphase centromeres to promote new CENP-A nucleosome assembly. We demonstrate that Xenopus M18BP1 binds CENP-A nucleosomes using a motif that is widely conserved except in mammals. The M18BP1 motif resembles a CENP-A nucleosome binding motif in CENP-C, and we show that CENP-C competes with M18BP1 for CENP-A nucleosome binding at centromeres. We show that both CENP-C and M18BP1 recruit HJURP to centromeres for new CENP-A assembly. This study defines cellular mechanisms for recruiting CENP-A assembly factors to existing CENP-A nucleosomes for the epigenetic inheritance of centromeres.
登录
查看更多内容
DOI:
10.1038/nrm3494
发表时间:
2013-01
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.3
作者:
Perpelescu M;Hori T;Toyoda A;Misu S;Monma N;Ikeo K;Obuse C;Fujiyama A;Fukagawa T
通讯作者:
Fukagawa T
DOI:
10.1083/jcb.200701065
发表时间:
2007-03-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Maddox PS;Hyndman F;Monen J;Oegema K;Desai A
通讯作者:
Desai A
DOI:
10.1083/jcb.201001013
发表时间:
2010-06-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
Carroll CW;Milks KJ;Straight AF
通讯作者:
Straight AF
影响因子:
7.8
作者:
Jansen, Lars E. T.;Black, Ben E.;Foltz, Daniel R.;Cleveland, Don W.
通讯作者:
Cleveland, Don W.