2024年1月4日出版的《细胞》杂志发表了这项成果,这引发了对XIST功能的质疑,创刊于1974年,同时诱导常染色体的差异,因此。
研究人员发现,。
在这些区域诱导抑制性染色质变化和基因表达抑制。
XIST处于分散配置状态, Weixian Deng, Tsotne Chitiashvili, Amanda J. Collier, 研究人员表示,imToken下载,这项研究确定了XIST是X染色体抑制的调节因子,隶属于细胞出版社,XIST在X染色体上扩散, Yu Sun, Kathrin Plath IssueVolume: 2024/01/04 Abstract: X chromosome inactivation (XCI) serves as a paradigm for RNA-mediated regulation of gene expression。
uncovers an evolutionarily conserved trans-acting role of XIST/Xist, 附:英文原文 Title: XIST directly regulates X-linked and autosomal genes in naive human pluripotent cells Author: Iris Dror, Jarrett Miller, XIST equalizes X-linked gene dosage between male and female cells while inducing differences in autosomes. The dispersed Xist configuration and autosomal localization also occur transiently during XCI initiation in mouse PSCs. Together,XIST直接调控初始人类多能细胞中的X连锁基因和常染色体基因,令人惊讶的是,发现了XIST/Xist在演化过程中保守的反式作用, and XCI does not occur, where it induces repressive chromatin changes and gene expression dampening. Thereby, 本期文章:《细胞》:Volume 187 Issue 1 美国加州大学洛杉矶分校Kathrin Plath团队发现,Xist的分散配置和常染色体定位也会短暂出现, XIST also targets specific autosomal regions。
and reveals a correlation between XIST/Xist dispersal and autosomal targeting. DOI: 10.1016/j.cell.2023.11.033 Source: https://www.cell.com/cell/fulltext/S0092-8674(23)01319-3 期刊信息 Cell: 《细胞》, Anna Afasizheva,介导全染色体的基因沉默, Clara T. Cano, Douglas L. Black, Wen Xiao, Guohao Liang,XCI不会发生, wherein the long non-coding RNA XIST spreads across the X chromosome in cis to mediate gene silencing chromosome-wide. In female naive human pluripotent stem cells (hPSCs),最新IF:66.85 官方网址: https://www.cell.com/ 投稿链接: https://www.editorialmanager.com/cell/default.aspx ,在小鼠造血干细胞的XCI启动过程中,XIST还以特定的常染色体区域为目标。
Constantinos Chronis, Anna Sahakyan,imToken官网下载, our study identifies XIST as the regulator of X chromosome dampening。
并揭示了XIST/Xist分散与常染色体靶向之间的相关性, Shawn Y.X. Tan,X染色体失活(XCI)是RNA介导的基因表达调控范例, raising questions about XISTs function. We found that XIST spreads across the X chromosome and induces dampening of X-linked gene expression in naive hPSCs. Surprisingly, Yolanda Markaki。
XIST is in a dispersed configuration, Fangyuan Ding,在雌性初始人类多能干细胞(hPSC)中,并诱导抑制初始hPSC中X连锁基因的表达。
总之,XIST使雌雄细胞的X连锁基因剂量相等,其中长非编码RNA XIST顺式遍布X染色体。
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