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相关概念视频

RNA-seq03:21

RNA-seq

11.7K
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...
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RNA Structure01:23

RNA Structure

78.7K
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...
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RNA Structure01:19

RNA Structure

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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...
7.1K
Experimental RNAi02:15

Experimental RNAi

7.2K
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...
7.2K
Nucleic Acid Structure01:25

Nucleic Acid Structure

8.4K
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...
8.4K
Ribosome Profiling02:24

Ribosome Profiling

4.1K
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...
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相关实验视频

Updated: Jan 13, 2026

Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells
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Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells

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综合实验和人工智能创新用于RNA结构确定.

Wenkai Wang1, Baoquan Su1, Zhenling Peng2

  • 1MOE Frontiers Science Center for Nonlinear Expectations, State Key Laboratory of Cryptography and Digital Economy Security, Research Center for Mathematics and Interdisciplinary Sciences, Shandong University, Qingdao, China.

Nature biotechnology
|January 6, 2026
PubMed
概括
此摘要是机器生成的。

研究人员正在利用创新的实验和人工智能方法推进RNA结构的确定. 结合这些技术的综合方法为生物技术和医学提供了对RNA生物学更深入的见解.

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科学领域:

  • 分子生物学分子生物学
  • 生物物理学的生物物理.
  • 计算生物学 计算生物学

背景情况:

  • 核糖核酸 (RNA) 是调节生物过程的关键细胞介质.
  • RNA的功能与它们复杂的三维结构密切相关.
  • 精确的RNA结构确定是具有挑战性的,因为它们的动态性质和独特的特性.

研究的目的:

  • 审查最近在RNA结构确定方面的突破.
  • 突出创新的实验和计算技术的影响.
  • 讨论整合方法的潜力,以促进RNA生物学的发展.

主要方法:

  • 电子显微镜 (cryo-EM) 用于高分辨率的结构分析.
  • 基于人工智能 (AI) 的工具,灵感来自蛋白质结构预测.
  • 综合性方法将实验数据与计算建模相结合.

主要成果:

  • 在解决和预测RNA结构方面取得了重大进展.
  • 在结构确定中增强了分辨率和可扩展性.
  • 展示了结合实验和计算策略的力量.

结论:

  • 整合性方法对于阐明RNA世界至关重要.
  • 克服当前的挑战将加深我们对RNA生物学的理解.
  • 在RNA结构确定方面的进展有望在生物技术和医学中实现变革性的应用.