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相关概念视频

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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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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使用IsoDiffR和长读单细胞RNA测序分析细胞类型特定的异型表达.

Hu Chen1,2, Ye Qian1,2, Qi Dai1

  • 1College of Life Science and medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.

Bioinformatics (Oxford, England)
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概括

IsoDiffR在单细胞RNA测序数据中识别出新型RNA异型. 这种工具揭示了传统方法错过的细胞类型特定的异型,为基因表达调节提供了新的见解.

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科学领域:

  • 基因组学就是基因组学.
  • 分子生物学分子生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 长期阅读的单细胞RNA测序 (scRNA-seq) 提供了超越基因水平分析的先进基因表达见解.
  • 目前对scRNA-seq的分析方法有限,因此需要用于同型分析的新工具.

研究的目的:

  • 介绍IsoDiffR,一种用于识别scRNA-seq数据中具有明显表达模式的RNA异型的新型计算工具.
  • 为了能够识别细胞类型特定的异型,并促进多种细胞类型之间的比较.

主要方法:

  • 开发IsoDiffR,一个用于分析长时间读取scRNA-seq数据的R包.
  • 使用模拟数据进行IsoDiffR的基准测试.
  • 将IsoDiffR应用于从Maca fascicularis角膜四肢和人类前皮层中获取的scRNA-seq数据.

主要成果:

  • 在动物和人类数据集中,IsoDiffR成功地识别了以前未被识别的细胞类型特定的异型.
  • 该工具检测到通过常规分析方法无法辨别的异形.
  • 对已识别的异形体的结构和功能性质的探索揭示了潜在的生物学作用.

结论:

  • IsoDiffR提供了一个强大的方法框架,用于在单细胞水平上调查异构体特异性功能.
  • 这些发现为复杂的生物系统中的基因表达调节和同型多样性提供了新的视角.