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Updated: Jun 10, 2025

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通过近距离条形码测序同时映射多个RNA修改

Erdem Sendinc^1,2,3, Hua Yu⁴, Yu Hsien Hwang Fu⁴

¹Stem Cell Program, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA.

bioRxiv : the preprint server for biology

|October 17, 2024

概括

通过EpiPlex RNA修饰分析,可以同时绘制多个RNA标记,从而推进表体转录组研究. 这种新方法揭示了METTL3和EIF4A3如何影响N6-甲基氨酸 (m⁶A) 水平和分布.

科学领域:

分子生物学分子生物学
遗传学是一个遗传学.
生物化学生化学

背景情况:

表体转录组包括多种RNA化学修饰,mRNA上的N6-甲基氨酸 (m6A) 对于转录后基因调节至关重要.
现有的技术允许单个RNA修饰的转录组范围的映射,但缺乏同时进行多修饰分析的方法.
在单个样本中同时检测多个RNA修饰是表表表转录组研究中的一个重大未满足的需求.

研究的目的:

开发一种新,方便的方法,同时绘制多个RNA修饰的地图.
为了使RNA修饰丰度在特定位置的相对量化.
研究METTL3和EIF4A3对表观转录组的影响.

主要方法:

EpiPlex RNA修饰分析,一个基于珠子的近距离条形码测定与测序读出.
使用分子识别来检测低RNA输入的多目标RNA修饰.
通过测量与spike-in控制器相比的信号强度来实现相对量化.

主要成果:

EpiPlex成功地同时绘制了多个RNA修饰的地图.
药物抑制METTL3降低了m6A水平,而EIF4A3抑制/敲击增加了m6A水平.
EIF4A3操纵证实了它在塑造美景中的作用,而不会影响伊诺辛水平.

结论:

EpiPlex提供了一个可靠和方便的平台,用于同时绘制多个RNA修饰的地图.
该方法有助于更深入地了解表皮转录组的动态和调节.
这些发现阐明了METTL3和EIF4A3在调节m⁶A修改模式中的作用.

关键词:

欧洲投资基金4A3A3 在METTL3中,METTL3是METTL3的第一个类型.基因组RNA的修饰基因组RNA的修饰副本转录组 (epitranscriptome) 是一个副本转录组 (epitranscriptome).没有 inosine inosine 的问题.m6A 一个很好的.

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