相关实验视频

Updated: Jun 9, 2025

A Nonsequencing Approach for the Rapid Detection of RNA Editing

A Nonsequencing Approach for the Rapid Detection of RNA Editing

Published on: April 21, 2022

LoDEI:一种强大而灵敏的工具,用于检测RNA-seq数据中转录组范围内的差异性A-to-I编辑

Phillipp Torkler¹, Marina Sauer², Uwe Schwartz³

¹Faculty of Computer Science, Deggendorf Institute of Technology, Dieter-Görlitz-Platz 1, Deggendorf, 94469, Bavaria, Germany.

Nature communications

|October 23, 2024

概括

一种新的方法,局部差分编辑指数 (LoDEI),灵敏地检测到腺-至-氨基酸 (A-to-I) RNA编辑的变化. 这个工具确定了像MYCN和非编码RNA这样的基因如何影响A-to-I编辑动态.

科学领域:

分子生物学分子生物学
遗传学遗传学是一个
生物信息学是一种生物信息学.

背景情况:

编辑RNA,特别是由作用于RNA (ADAR) 的腺氨酸脱氨酶介导的腺氨酸到氨酸 (A-to-I) 编辑,是一个关键的转录后修改.
A-to-I编辑在人类疾病和免疫调节中起着重要作用,推动了人们对使用基础编辑器的治疗应用的兴趣.
精确检测差异性A-to-I编辑对于理解其生物学和治疗影响至关重要,但仍然是一个挑战.

研究的目的:

开发一种敏感的方法来检测RNA测序数据集中的差异性A-to-IRNA编辑.
为了解决在生物和治疗背景下分析A-to-I编辑动态的未满足需求.

主要方法:

介绍了局部差分编辑指数 (LoDEI),这是检测差分A-to-I编辑的新方法.
使用滑动窗口策略与实证q值计算相结合,以提高检测灵敏度.
在已知和新生物数据集上对LoDEI的验证.

主要成果:

与相同的错误发现率相比,LoDEI在检测A-to-I编辑站点方面表现出优异的性能,与现有的方法相比.
该研究发现,瘤基因MYCN积极增加A-to-I编辑.
发现一种特定的小型非编码RNA可以降低A-to-I编辑水平.

结论:

LoDEI为分析差异性A-to-IRNA编辑提供了一种敏感且有效的工具.
这些发现突出了MYCN和特定的小型非编码RNA在调节A-to-I编辑中的调节作用.
这一进步有助于对RNA编辑在健康和疾病中的功能后果进行更深入的研究.

更多相关视频

Three Differential Expression Analysis Methods for RNA Sequencing: limma, EdgeR, DESeq2

Three Differential Expression Analysis Methods for RNA Sequencing: limma, EdgeR, DESeq2

Published on: September 18, 2021

Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Identification of Alternative Splicing and Polyadenylation in RNA-seq Data

Published on: June 24, 2021

相关概念视频

RNA Editing

RNA Editing

RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...

Ribosome Profiling

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...

RNA-seq

RNA-seq

RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...

Experimental RNAi

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...