在染色体重塑和H3K36me3分布中DNAAF3-AS1的功能性表征
Anna Budkina1,2, Anatoliy Zubritskiy1, Jude Aneke2
1Skryabin Institute of Bioengineering, Research Centre of Biotechnology, Russian Academy of Sciences, 117312, Moscow, Russian Federation.
bioRxiv : the preprint server for biology
|December 25, 2025
概括
长非编码RNA DNAAF3-AS1 调节了组织蛋白标记H3K36me3.3. 耗尽DNAAF3-AS1改变了H3K36me3的分布和基因促进活性,揭示了它在表观遗传控制中的作用.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 长非编码RNAs (lncRNAs) 是基因表达的关键调节者.
- 在lncRNA DNAAF3-AS1 显示与H3K36me3 基因素标记的强烈相关性.
- 了解IncRNA介导的表观遗传调节至关重要.
研究的目的:
- 为了研究DNAAF3-AS1和H3K36me3沉积之间的功能关系.
- 确定DNAAF3-AS1敲击如何影响H3K36me3的分布和基因表达.
- 阐明DNAAF3-AS1在表观遗传控制中的作用.
主要方法:
- 在人类皮肤纤维细胞中,DNAAF3-AS1通过使用反感性寡核酸被淘汰.
- H3K36me3 染色体免疫沉降序列 (ChIP-seq) 分析.
- 不同基因表达分析.
主要成果:
- DNAAF3-AS1的枯竭导致了H3K36me3.3.的显著重新分配.
- H3K36me3信号在基因间区域和第一个外基因中增加,在基因体中减少.
- 敲击诱导促进体切换和下游基因促进体的下调.
结论:
- DNAAF3-AS1作为H3K36me3沉积的调节者.
- DNAAF3-AS1影响转录架构和表观遗传调节.
- 这项研究提供了对lncRNA-表观遗传相互作用的机制性见解.
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