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相关概念视频

Complementary DNA01:44

Complementary DNA

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DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
Complementary DNA01:44

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相关实验视频

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Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
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EndoQuad:一个全面的全基因组实验验证的内源G-四重复数据库.

Sheng Hu Qian1, Meng-Wei Shi1, Yu-Li Xiong1

  • 1Hubei Hongshan Laboratory, College of Life Science and Technology, College of Biomedicine and Health, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, PR China.

Nucleic acids research
|October 31, 2023
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概括

这项研究介绍了EndoQuad,这是通过高通量实验识别的内源G-四重复合体 (eG4s) 的数据库. EndoQuad为探索eG4及其在遗传学和疾病中的监管作用提供了一个全面的资源.

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Last Updated: Jun 15, 2026

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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:

  • G四重复体 (G4s) 是非正规的DNA结构,在遗传调节中扮演着新兴的角色.
  • 目前缺乏对内源G4s (eG4s) 及其调控网络的全面基因组注释和表征.
  • 现有的差距阻碍了对eG4及其功能意义的深入研究.

研究的目的:

  • 开发EndoQuad,一个实验验验证的内源DNAG四复合体 (eG4s) 的全面和交互式数据库.
  • 整合高通量实验数据用于全基因组的eG4映射和表征.
  • 通过提供一个集中资源来访问,下载和重新使用数据,促进对eG4s的研究.

主要方法:

  • 在人类,小鼠和中使用G4 ChIP-seq/CUT&Tag生成全基因组eG4s映射数据集.
  • 多种omics分析以表征eG4s,包括细胞类型特异性,结构稳定性,进化保护和基因组丰富.
  • 功能性基因组变异的整合,以优先考虑在疾病和癌症中具有调节作用的eG4.

主要成果:

  • 创建了一个全基因组eG4s的参考集合,其中大多数被识别在特定细胞类型中.
  • 在样本中发生率较高的eG4在促进区域中表现出更大的结构稳定性,进化保存和丰富.
  • 这些高可信度的eG4与高度表达的基因和复杂的调节程序有关,包括疾病和癌症中的作用.

结论:

  • EndoQuad是eG4研究的一个有价值的,一站式资源,巩固了经过实验验证的数据.
  • 该数据库使用户能够访问和使用eG4数据用于各种研究应用.
  • "EndoQuad"为未来对G-四重复体及其监管影响的功能研究奠定了基础.