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相关概念视频

Chromatin Structure and RNA Splicing02:41

Chromatin Structure and RNA Splicing

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Inheritance of Chromatin Structures03:17

Inheritance of Chromatin Structures

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Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
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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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Chromatin Packaging02:21

Chromatin Packaging

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Each human somatic cell contains 6 billion base-pairs of DNA. Each base-pair is 0.34 nm long, which means that each diploid cell contains a staggering 2 meters of DNA. How is such a long DNA strand packed inside a nucleus measuring only 10 - 20 microns in diameter? 
The chromatin
In combination with specialized DNA binding protein called Histones, the DNA double helix forms a compact DNA: protein complex called chromatin. The chromatin itself is further compacted into higher-order...
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Chromatin Packaging01:32

Chromatin Packaging

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Each human somatic cell contains 6 billion base pairs of DNA. Each base pair is 0.34 nm long, meaning each diploid cell contains a staggering 2 meters of DNA. This long DNA strand is packed inside a nucleus measuring only 10-20 microns in diameter with the help of specialized DNA-binding proteins called histones. Together they form a compact DNA-protein complex called chromatin. The chromatin is further compacted into higher-order structures. The highest level of compaction is achieved during...
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Spreading of Chromatin Modifications02:25

Spreading of Chromatin Modifications

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The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
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相关实验视频

Updated: Feb 13, 2026

Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches
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DeepRCI:通过深度学习和多omics数据预测RNA-染色质相互作用.

Yuanpeng Xiong1,2, Xuan He3, Dan Zhao3

  • 1Department of Computer Science and Technology Tsinghua University Beijing 100084 China.

Quantitative biology (Beijing, China)
|February 12, 2026
PubMed
概括

我们开发了DeepRCI,这是一种识别RNA-染色质相互作用的计算工具. DeepRCI准确地预测了这些相互作用,并提供了对基因调节和细胞功能的洞察.

关键词:
在RNA-chromatin中.深度学习是一种深度学习.多个学科的数据数据.

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科学领域:

  • 基因组学就是基因组学.
  • 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
  • 计算生物学 计算生物学

背景情况:

  • 染色体关联RNA (caRNA) 是真核生物中的关键表观遗传调节剂,对于转录和分化等过程至关重要.
  • 研究RNA-染色质相互作用的实验方法往往昂贵且耗时.
  • 现有的计算工具在检测与染色质相互作用的多种RNA类型方面是有限的.

研究的目的:

  • 介绍DeepRCI,一个用于识别RNA-染色质相互作用的新型计算框架.
  • 为分析这些相互作用和基因调节代码提供一种高度可解释的工具.

主要方法:

  • DeepRCI使用了一个名为variformer的深度学习组件.
  • 该框架集成了多omics数据,以分析RNA和DNA层面的基因组特征.

主要成果:

  • 与现有的方法相比,DeepRCI在检测RNA-染色质相互作用方面表现出卓越的准确性.
  • 提取的序列特征与已知的基因调节元件保持一致,提供生物学见解.
  • 预测揭示了RNA-染色质相互作用和细胞功能 (如基因表达) 之间的联系.

结论:

  • DeepRCI是一种有效的工具,用于表征RNA-染色质相互作用.
  • 该框架有助于破译由这些相互作用支配的复杂基因调节代码.