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相关概念视频

RNA-seq03:21

RNA-seq

10.0K
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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Cell Specific Gene Expression01:58

Cell Specific Gene Expression

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Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Cell Lines01:16

Cell Lines

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A cell line is a population of cells grown in vitro that can be subcultured over several generations. Normal cells cease to divide after a certain number of cell divisions, a process known as replicative senescence. This number, called the Hayflick limit, was conceptualized by Leonard Hayflick in 1961 when he observed that fetal cells grown in culture could only divide 40-60 times. This limit is due to the shortening of the telomeres during each round of cell division, preventing cell division...
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Cell Diversity01:13

Cell Diversity

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The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
Multicellular...
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相关实验视频

Updated: Jul 12, 2025

Transcriptome Analysis of Single Cells
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Transcriptome Analysis of Single Cells

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细胞STAR:一个单细胞转录基因注释的综合资源.

Ying Zhang1, Huaicheng Sun1, Wei Zhang1

  • 1College of Pharmaceutical Sciences, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China.

Nucleic acids research
|October 19, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了CellSTAR,这是单细胞转录组注释的综合数据库. 这种资源有助于通过整合参考数据和数千个标记基因来准确识别细胞类型来理解细胞异质性.

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相关实验视频

Last Updated: Jul 12, 2025

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科学领域:

  • 基因组学就是基因组学.
  • 细胞生物学 细胞生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 单细胞测序揭示了细胞类型特定的表达模式,强调了需要准确的细胞类型注释的需要.
  • 基因表达分析为细胞类型识别提供了注释参考和法典标记,这对于细胞类型识别至关重要.
  • 了解细胞异质性在生物研究中至关重要.

研究的目的:

  • 开发第一个单细胞转录基因注释的综合数据库,命名为CellSTAR.
  • 为数百种细胞类型提供专家注释的参考数据.
  • 为了使参考数据和广泛标记基因的综合分析.

主要方法:

  • 在CellSTAR数据库的开发.
  • 纳入成千上万的正规标记基因.
  • 整合全面的,专家注释的参考数据集.

主要成果:

  • 创建了CellSTAR,这是单细胞转录组注释的新资源.
  • 细胞STAR为众多细胞类型提供了前所未有的全面的注释参考数据.
  • 数据库促进了对参考数据和标记基因的联合使用,以增强注释.

结论:

  • 细胞STAR是单细胞生物学社区的独特和有价值的资源.
  • 该数据库预计将推动单细胞转录组学,细胞异质性和动态学的研究.
  • 在https://idrblab.org/cellstar上公开访问CellSTAR,不需要登录.