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相关概念视频

Alternative RNA Splicing02:18

Alternative RNA Splicing

21.1K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
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RNA Splicing01:32

RNA Splicing

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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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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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Using RNA-sequencing to Detect Novel Splice Variants Related to Drug Resistance in In Vitro Cancer Models
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在scRNA-seq数据中挖掘替代拼接模式,使用scASfind.

Yuyao Song1,2, Guillermo Parada1,3, Jimmy Tsz Hang Lee1

  • 1Wellcome Sanger Institute, Hinxton, CB10 1SA, UK.

Genome biology
|July 29, 2024
PubMed
概括
此摘要是机器生成的。

我们开发了scASfind,这是一个新的计算工具,用于从单细胞RNA测序数据中分析特定细胞类型的替代拼接事件. 这种方法可以在不同细胞类型中发现新的拼接模式.

关键词:
另一个替代拼接.细胞类型特定的事件一个单细胞RNA-seqq.

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科学领域:

  • 基因组学就是基因组学.
  • 计算生物学 计算生物学
  • 分子生物学分子生物学

背景情况:

  • 单细胞RNA测序 (scRNA-seq) 是一个强大的工具,用于转录组概况.
  • 目前的scRNA-seq分析主要关注基因水平表达,忽视了替代拼接事件.
  • 了解替代拼接对于细胞类型的表征和功能至关重要.

研究的目的:

  • 引入scASfind,这是一个新的计算方法,用于对scRNA-seq数据中的替代拼接进行定量分析.
  • 通过使用全长scRNA-seq数据,能够识别细胞类型特定的剪接事件.
  • 为了促进发现新的拼接模式和生物标志物的发现.

主要方法:

  • 开发了scASfind,这是一个利用高效数据结构的计算工具.
  • 实施了对拼接事件的百分比拼接值 (PSI) 的定量分析.
  • 应用 scASfind 到全长的 scRNA-seq 数据进行全面的拼接分析.

主要成果:

  • scASfind允许对差异拼接事件进行详尽的搜索.
  • 特定的细胞类型特定的标记物拼接事件.
  • 发现了相互排斥的拼接事件以及在细胞类型内涉及大型外块的事件.

结论:

  • scASfind提供了一种强大的方法来分析特定细胞类型的替代拼接.
  • 该工具通过拼接变异增强了对细胞异质性的理解.
  • 促进发现用于细胞识别和功能的新型拼接相关生物标志物.