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相关概念视频

Combinatorial Gene Control02:33

Combinatorial Gene Control

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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
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Cell Specific Gene Expression01:58

Cell Specific Gene Expression

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Chromatin Position Affects Gene Expression02:35

Chromatin Position Affects Gene Expression

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Chromatin is the massive complex of DNA and proteins packaged inside the nucleus. The complexity of chromatin folding and how it is packaged inside the nucleus greatly influences  access to genetic information. Generally, the nucleus' periphery is considered transcriptionally repressive, while the cell's interior is considered a transcriptionally active area. 
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
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Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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相关实验视频

Updated: Jun 22, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
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斯普莱特:通过基因和细胞网络改善空间基因表达的归算.

Eric D Sun1, Rong Ma2, James Zou1

  • 1Department of Biomedical Data Science, Stanford University, Stanford, CA 94305, United States.

Bioinformatics (Oxford, England)
|June 28, 2024
PubMed
概括

输入转录表达的空间传播和强化 (SPRITE) 通过利用空间和基因网络来增强空间基因表达预测. 这可以改善细胞聚类,可视化和空间转录学数据分析中的分类.

科学领域:

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

背景情况:

  • 空间分辨的单细胞转录组学提供了关于基因表达和组织组织的洞察.
  • 目前的空间转录学技术仅限于测量少量的基因.
  • 现有的基因表达赋值算法不能充分利用空间和基因关系信息.

研究的目的:

  • 介绍SPRITE (输入转录表达的空间传播和强化),这是一个旨在改善空间基因表达预测的元算法.
  • 在空间转录组学数据中利用丰富的空间和基因关系信息.
  • 为了提高更广泛的基因组的基因表达赋值的准确性.

主要方法:

  • SPRITE处理来自现有归算方法的预测.
  • 它通过基因相关联网络传播信息.
  • 它使用空间邻近图来改进预测.

主要成果:

  • SPRITE显著改善了跨多种空间转录组学数据集的空间基因表达预测.
  • 预测的空间基因表达增强了细胞聚类,可视化和分类.
  • SPRITE 集成带来了空间转录学数据分析中更强大的推理.

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相关实验视频

Last Updated: Jun 22, 2025

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结论:

  • SPRITE是一种有效的元算法,用于增强空间基因表达赋值.
  • 该方法改进了空间转录组学的下游分析.
  • SPRITE为该领域的研究人员提供了一种有价值的工具.