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相关概念视频

Ribosome Profiling02:24

Ribosome Profiling

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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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RNA-seq03:21

RNA-seq

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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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In-situ Hybridization02:31

In-situ Hybridization

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In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
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相关实验视频

Updated: Sep 13, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
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Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection

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通过TATA-seqq在现场对RNA细胞下定位进行分析.

Junjie Li1, Chu Xu1, Xiao Jiang1

  • 1Fudan University Shanghai Cancer Center.

RNA (New York, N.Y.)
|August 1, 2025
PubMed
概括

研究人员开发了目标转录放大和测序 (TATA-seq) 以在没有膜的有机体内分析RNA. 这种方法使得像应力颗粒这样的细胞结构中RNA动态的敏感和准确研究成为可能.

科学领域:

  • 细胞生物学 细胞生物学
  • 分子生物学分子生物学
  • 基因组学就是基因组学.

背景情况:

  • 无膜有机体,包括P体,应力颗粒和核斑点,对于RNA调节至关重要.
  • 这些动态结构是通过RNA结合蛋白 (RBPs) 和RNA的液态液态相分离 (LLPS) 形成的.
  • 目前研究这些有机体内的RNA的方法缺乏灵敏度,特异性和简单性.

研究的目的:

  • 开发一种新,敏感和特定的方法,用于在没有膜的有机体内分析RNA.
  • 克服现有技术的局限性,在亚细胞区内进行RNA分析.

主要方法:

  • 介绍了目标转录放大和测序 (TATA-seq),一种用于in situRNA分析的技术.
  • 利用基于器官标记蛋白的抗体向来招募T7促进体.
  • 用于现场逆转录和T7RNA聚合酶放大用于测序库的准备.
  • 集成的IgG控制器用于背景噪声减去.

主要成果:

  • 在 HeLa 细胞中由酸诱导的压力颗粒中成功地分析了 RNA.
  • 实现了高的映射比率 (约. 90%) 和受控的重复率 (≤25%).
  • 使用光现场混合 (FISH) 和免疫光同位化验证的TATA-seq发现.
关键词:
在现场RNA逆转录反转录.线性放大线性放大线性的放大线.应力颗粒的压力颗粒亚细胞局部化的局部化

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Metabolic Labeling and Profiling of Transfer RNAs Using Macroarrays
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Metabolic Labeling and Profiling of Transfer RNAs Using Macroarrays

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Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation
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Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation

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相关实验视频

Last Updated: Sep 13, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
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Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection

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Metabolic Labeling and Profiling of Transfer RNAs Using Macroarrays
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Metabolic Labeling and Profiling of Transfer RNAs Using Macroarrays

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Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation
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Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation

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结论:

  • TATA-seq提供了一种简单,敏感和准确的方法来研究无膜有机体中的RNA动态.
  • 这种方法显著提高了研究亚细胞结构中的RNA生物学的能力.
  • TATA-seq促进了对RNA在细胞过程中的作用的更深入的理解,这些过程由没有膜的有机体调节.