基础分辨率测序方法用于对mRNA修饰的全转录组量化.
Li-Sheng Zhang1,2,3,4, Qing Dai1,2, Chuan He1,2
1Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States.
Accounts of chemical research
|December 11, 2023
概括
新的定量测序方法使得哺乳动物mRNA中各种RNA修饰的基底分辨率映射,包括N6-甲基氨酸 (m6A). 这些技术提高了对RNA修饰体几何学和功能的理解.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 生物化学 生化学
背景情况:
- RNA分子经历了超出标准基的化学修饰,显著影响了基因表达.
- 虽然像rRNA和tRNA这样的丰富的RNA被严重修改,但最近的研究突出了mRNA,ncRNA和caRNA等低丰度RNA的功能修改.
- N6-甲基氨酸 (m6A) 是哺乳动物中最常见的mRNA修饰,影响mRNA处理和新陈代谢,通常使用m6A-MeRIP-seq.q.进行映射.
研究的目的:
- 总结最近在开发基于化学或生物化学的方法来定量绘制RNA修饰的进展.
- 为了使哺乳动物细胞中多个mRNA修饰的基础分辨率分析和修饰分数量化.
- 为了更深入地了解RNA修饰分布,固体测量及其在基因调节和临床应用中的功能意义.
主要方法:
- 开发基于化学或生物化学的新型测序技术.
- 这些方法包括m6A-SAC-seq,eTAM-seq,BID-seq,UBS-seq,DAMM-seq,m1A-quant-seq,Nm-Mut-seq,以及m7G-quant-seq. 这三种方法都被使用.
- 这些技术允许基解析度映射和定量分析各种RNA修饰的低RNA输入.
主要成果:
- 成功开发了用于绘制主要mRNA修饰的定量方法,包括m6A, Ψ, m5C, m1A, Nm和内部m7G,在基础分辨率上.
- 这些方法可以分析各种RNA物种 (mRNA,caRNA,ncRNA,线粒体RNA,cfRNA) 的样本要求有限.
- 开发的技术允许在生物过程中发现修饰石化学的动态变化.
结论:
- 新的定量测序方法提供了多个mRNA修饰的精确映射,增强了我们对它们在基因表达中的作用的理解.
- 这些进展促进了对RNA修饰的研究,作为临床诊断和预后的潜在生物标志物.
- 开发的方法是多用途的,适用于mRNA以外的各种RNA物种.
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