A polyglutamine domain is required for de novo CIZ1 assembly formation at the inactive X chromosome
A polyglutamine domain is required for de novo CIZ1 assembly formation at the inactive X chromosome
复制标题
在失活的 X 染色体上从头形成 CIZ1 组装需要多聚谷氨酰胺结构域
DOI:
10.1101/2020.11.10.376558
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Sofi S
中科院分区:
文献类型:
--
作者:
Sofi S
CIP1-interacting zinc finger protein 1 (CIZ1) forms large assemblies at the inactive X chromosome (Xi) in female fibroblasts in anXistlncRNA-dependent manner. Here we address the requirements for assembly formation, and show that CIZ1 interacts directly withXistvia two independent domains in its N- and C-terminus. Interaction withXistrepeat E, assembly at Xi in cells, and the complexity of self-assemblies formedin vitro,are all modulated by alternatively-spliced exons that include two glutamine-rich prion-like domains (PLD1 and PLD2), both conditionally excluded from the N-terminal domain. Exclusion of PLD1 alone is sufficient to abrogatede novoestablishment of new CIZ1 assemblies and Xi territories enriched for H3K27me3 in CIZ1-null fibroblasts. Together the data suggest that PLD1-driven CIZ1 assemblies form at Xi, are nucleated by interaction withXistand amplified by multivalent interaction with RNA, so implicating a polyglutamine tract in the maintenance of epigenetic state.
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DOI:
10.1073/pnas.0408936102
发表时间:
2005-01-18
影响因子:
11.1
作者:
Zhang, XQ;Smith, DL;Kazantsev, AG
通讯作者:
Kazantsev, AG
影响因子:
16
作者:
Davidovich, Chen;Wang, Xueyin;Cifuentes-Rojas, Catherine;Goodrich, Karen J.;Gooding, Anne R.;Lee, Jeannie T.;Cech, Thomas R.
通讯作者:
Cech, Thomas R.
影响因子:
64.8
作者:
Anger, Andreas M.;Armache, Jean-Paul;Beckmann, Roland
通讯作者:
Beckmann, Roland
DOI:
--
发表时间:
2020
期刊:
bioRxiv
影响因子:
--
作者:
Weirui Ma;Gang Zhen;W. Xie;C. Mayr
通讯作者:
C. Mayr
影响因子:
16
作者:
Wutz, A;Jaenisch, R
通讯作者:
Jaenisch, R