相关实验视频

Updated: May 24, 2025

Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.

Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.

Published on: May 6, 2010

使用Dip3D从杂的Pore-C数据重建双胞胎高阶人类3D基因组相互作用

Ying Chen^1,2,3, Zhuo-Bin Lin², Shao-Kai Wang⁴

¹State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.

Nature structural & molecular biology

|March 4, 2025

概括

从噪音测序数据中,Dip3D可以重建双胞胎高阶染色体相互作用. 这种方法改善了单基因型信息,使得人们能够更深入地了解3D基因组组织和异位基因特异性表达.

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:

同类染色体之间的高阶染色体相互作用对生物过程至关重要.
传统方法难以提供全面的哈普洛型信息,特别是在像人类这样的低异构性生物体中.

研究的目的:

从杂的Pore-C测序数据中开发一个强大的管道来划分双倍高阶染色体相互作用.
提高哈普洛型信息接触率,提高3D基因组重建的准确性.

主要方法:

在Pore-C数据上训练了Clair3深度学习模型,用于高级单核酸变异 (SNV) 调用.
实施了阅读标记策略,用于哈普洛型识别和哈普洛型归算策略,用于高阶对应物.
开发了一种基于高异质合性小鼠数据的渐进型单 haplotype 归算策略.

主要成果:

在哈普洛型信息的Pore-C接触率中实现了14.1倍的改善,在HG001细胞系中达到76%.
与传统方法相比,Dip3D显示出优异的降噪和接触分布均性.
识别了以前未解决的哈普洛型高阶相互作用及其与异位基因特异性表达的联系,包括X染色体不活化.

结论:

Dip3D是一个强大的管道,用于高质量的二倍体高阶3D基因组相互作用的重建.
该方法显著提高了复杂的基因组结构和表观遗传调节的分析.
提供了一种强大的工具,用于研究单 haplotype 特定的基因组组织及其功能后果.

更多相关视频

Mapping Mammalian 3D Genome Interactions with Micro-C-XL

Mapping Mammalian 3D Genome Interactions with Micro-C-XL

Published on: November 3, 2023

Capturing Chromosome Conformation Across Length Scales

Capturing Chromosome Conformation Across Length Scales

Published on: January 20, 2023

相关概念视频

Evolutionary Relationships through Genome Comparisons

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...