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Updated: Jun 5, 2025

DNA Methylation: Bisulphite Modification and Analysis

DNA Methylation: Bisulphite Modification and Analysis

Published on: October 21, 2011

解码m⁶Am通过同时进行转录启动映射和甲基化量化.

Jianheng Fox Liu¹, Ben R Hawley^1,2, Luke S Nicholson¹

¹Department of Pharmacology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA.

bioRxiv : the preprint server for biology

|December 16, 2024

概括

此摘要是机器生成的。

N6,2'-O-dimethyladenosine (m6Am) 是一个关键的RNA修饰. CROWN-seq揭示了mRNA异形中m6Am固态度,将其与更高的转录表达和转录启动联系起来.

更多相关视频

A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues

A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues

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Methodology for Accurate Detection of Mitochondrial DNA Methylation

Methodology for Accurate Detection of Mitochondrial DNA Methylation

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Last Updated: Jun 5, 2025

DNA Methylation: Bisulphite Modification and Analysis

DNA Methylation: Bisulphite Modification and Analysis

Published on: October 21, 2011

A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues

A Method for Measuring RNA N6-methyladenosine Modifications in Cells and Tissues

Published on: December 5, 2016

Methodology for Accurate Detection of Mitochondrial DNA Methylation

Methodology for Accurate Detection of Mitochondrial DNA Methylation

Published on: May 20, 2018

科学领域:

分子生物学分子生物学
在RNA生物学,RNA生物学.
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

N6,2 -O-dimethyladenosine (m6Am) 是一种重要的表体转录组修饰,在mRNA和snRNA的5端发现.
目前的m6Am检测方法受到每基因单个转录起点的假设的限制,无法考虑转录异形多样性.

研究的目的:

开发和应用一种新的方法,CROWN-seq,用于同时识别转录起始点和量化5种异形体的m6Am胆固醇测量.
为了全面地绘制人类细胞中的m6Am景观,并研究其与基因表达和转录启动的关系.

主要方法:

CROWN-seq:一种基于测序的新方法,用于识别转录起始点,并量化m6Am修饰单个mRNA5异型的固态度.
在九个人类细胞系中应用CROWN-seq以生成一个转录组范围的m6Am地图.

主要成果:

在大多数细胞mRNA中,m6Am主要是一种高静态度的修饰,其中一小部分表现出较低的静态度.
m6Am修饰水平与转录表达水平呈正相关.
证据表明m6Am修饰与特定的促进子序列和转录启动机制之间存在联系.

结论:

CROWN-seq提供了一个强大的工具来解决跨转录异型的m6Am异质性.
m6Am在调节基因表达方面发挥着重要作用,可能会影响转录启动.
这些发现表明m6Am在基因表达控制中的新型调节功能.