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Updated: Sep 19, 2025

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations

An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations

Published on: November 3, 2010

序列和源代基因依赖的m⁶A对等位基因特异性基因表达有所贡献

Ying Zhang^1,2,3, Ze-Yu Zhang⁴, Hong-Xuan Chen^1,5,6

¹MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275, Guangzhou, China.

The EMBO journal

|June 3, 2025

概括

这项研究揭示了小鼠中广泛的等位基特异性N6 - - 甲基氨酸 (m6A) 甲基化差异,受到序列和父母起源的影响. 这些发现突出了m⁶A的发现.

科学领域:

遗传学遗传学是一个
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

背景情况:

同基因特异性表达 (ASE) 是通过转录调节的,但对后转录调节的理解仍然较少.
N6 - - 甲基氨酸 (m6A) 是一种影响基因表达的流行mRNA修饰.
研究基因特异性的m⁶A (ASm⁶A) 可以发现新的转录后调节机制.

研究的目的:

在小鼠中进行异位基因特异性m6A甲基化的全转录组分析.
为了识别依赖序列和依赖原产地父的ASm⁶A.
探索ASm⁶A与等位基特异性表达之间的关系.

主要方法:

从不同小鼠菌株的相互交叉交叉的早期产后组织中对m⁶A的全转录组分析.
测量单基分辨率的等位基m6A差异.
统计分析以确定显著和可重复的ASm6A网站.

主要成果:

确定了成千上万个具有统计意义和可重现的ASm6A位点,表明在m6A甲基化中存在广泛的依赖序列的基失衡.
在ASm⁶A位点附近发现了cis调节变异的证据.
检测到父母对m⁶作为表现出父母来源依赖的ASE的基甲基化的影响.
观察到m⁶A甲基化和表达之间对立的等位基因偏好,无论是依赖于序列还是依赖于原始基因的ASm⁶As.

结论:

无论是cis-acting还是父源效应,都显著影响了等位基特的m6A甲基化.
ASm6A可以通过对基因表达的负面影响来调节等位基因特异性表达.
这项研究为对异位基因特异性表达的转录后调节提供了新的见解.

关键词:

基特异性表达方式这是一个监管要素.基因组印记是一种基因组印记.父母的起源效应 m6A 修改的修改.

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