相关实验视频
Updated: May 8, 2026

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Novel RNA-Binding Proteins Isolation by the RaPID Methodology
Published on: September 30, 2016
系统地发现控制哺乳动物信使RNA稳定的结构元素
Hani Goodarzi1, Hamed S Najafabadi, Panos Oikonomou
1Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08540, USA.
Nature
|April 13, 2012
概括
研究人员开发了一个计算框架,以发现调节基因表达的RNA结构动机. 这一框架确定了一种关键蛋白质,HNRPA2B1,它稳定了许多向基因,进步了我们对后转录调节的理解.
科学领域:
- 计算生物学 计算生物学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 了解RNA在细胞行为中的作用需要解码转录后调节程序.
- RNA二次结构显著影响着像转录稳定性,拼接和局部化这样的监管环境.
- 目前的方法很难描述RNA调节元件的巨大风景,特别是结构性元素.
研究的目的:
- 开发一个计算框架,系统地探索RNA结构元素及其调节功能.
- 为了识别新的RNA结构动机,信息的全基因组RNA行为.
- 根据cis-regulatory元素及其相互作用,绘制全球后转录监管网络的地图.
主要方法:
- 开发了一个利用无上下文语法和相互信息的计算框架.
- 将框架应用于全基因组人类mRNA稳定性数据.
- 利用生物化学,质谱和体内结合研究来识别调节性蛋白质.
主要成果:
- 确定了八个非常重要的RNA结构元素,这些元素对mRNA稳定性有信息.
- 发现人类的HNRPA2B1 (异质核核核糖核蛋白A2/B1) 结合了一个关键的结构元素.
- 证明了HNRPA2B1在稳定大量目标基因中的重要作用,创造了一个全球监管地图.
结论:
- 计算框架有效地揭示了信息性的RNA结构动机.
- 通过结合特定结构元素,HNRPA2B1是mRNA稳定性的关键调节者.
- 这种方法为绘制RNA调节程序和理解细胞动态提供了一个强大的工具.
相关概念视频
RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
Types of RNA
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
RNA Stability
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
RNA Structure
The basic structure of RNA consists of a string of ribonucleotides attached by phosphodiester bonds. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
Nucleic Acid Structure
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...
DNA Structure
DNA has a double-helix structure. The...

