使用WashU重复浏览器探索重复元素的表观基因组配置文件
Jiawei Shen1, Siyuan Cheng2, Deepak Purushotham2
1Washington University School of Medicine, Washington University in St. Louis.
Genome research
|February 21, 2025
概括
WashU重复浏览器可视化和分析哺乳动物基因组中的可移植元素 (TE). 这种工具有助于研究人员了解重复性DNA序列的调节作用.
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.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 可转移元素 (TE) 构成了哺乳动物基因组的很大一部分,尽管表观遗传抑制,但影响了调节景观.
- 由于TE的重复性,对使用短读序列的基因组分析提出了挑战,因为其可映射性较低.
- 现有的生物信息学工具难以有效地可视化和解释TE基因组学数据.
研究的目的:
- 介绍WashU重复浏览器,这是一个基于Web的平台,用于托管和分析人类和小鼠可转移元素基因组学资料.
- 为了方便导航,交互式可视化,整合和与TE相关数据的比较.
- 支持对重复序列及其潜在监管功能的调查.
主要方法:
- 开发一个基于网络的平台,整合来自ENCODE,路线图和FANTOM项目的数据.
- 华盛顿大学表观基因组浏览器的扩展,以显示以 TE 为中心的视图,包括子家族丰富和配置文件.
- 在个别的TE位置上对基因组信号的可视化.
主要成果:
- 华盛顿大学的重复浏览器提供了一个以 TE 为中心的界面,用于在重复元素中探索基因组和统计信号.
- 该平台允许详细分析TE子家族的丰富性和概况.
- 用户可以将特定的TE位点与选定的基因组数据集一起可视化和分析.
结论:
- 华盛顿大学的重复浏览器解决了对TE基因组学数据的可视化和解释的挑战.
- 它促进了公共数据集的整合,可能揭示了对重复序列的监管功能的新见解.
- 该工具旨在帮助研究人员提出关于TE在基因组调节中的作用的假设.
相关概念视频
Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
Genomic DNA in Eukaryotes
46.6K
Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
46.6K


