通过获得和失去CTCF绑定活动来识别有害的非编码变化
Colby Tubbs1, Mary Lauren Benton2, Evonne McArthur3
1Division of Genetic Medicine, Department of Medicine, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA.
American journal of human genetics
|March 6, 2025
概括
我们开发了一个新的框架来识别CTCF结合部位的功能遗传变异. 这种方法优先考虑破坏基因调节的罕见非编码变异,有助于未来的功能研究.
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.
- 生物信息学是一种生物信息学.
背景情况:
- CCCTC结合因子 (CTCF) 通过结合数千个基因组部位来调节基因表达.
- 在CTCF结合位点 (CBSs) 内的遗传变异有助于表型多样性,但在全基因组测序数据中识别功能上重要的变异具有挑战性.
研究的目的:
- 在gnomAD数据库中开发一个以假设为导向的框架来识别和优先考虑CBS变体.
- 评估破坏CTCF结合的单核酸变异 (SNV) 的功能影响.
主要方法:
- 在1,063,878个位点和214个生物环境中合成了CTCF结合模式,以创建一个结合活动摘要.
- 与核酸保护和CTCF结合基因相关联的结合活性.
- 评估了对1,253,329个SNV破坏CBS的等位基结结合预测,使用结合活性和单子基因的可变性调整比例 (MAPS) 度量.
主要成果:
- 高CTCF结合活性与保存的核酸和高质量的CTCF结合基因有很强的相关性.
- 在MAPS指标和CTCF结合在高体外活性位点的损失之间存在显著的积极关系.
- 有339,380个CTCF结合变体的丢失子集被观察到与错误变体一样罕见.
结论:
- 开发的框架有效地识别和优先考虑破坏CTCF绑定的罕见非编码变体.
- 这些变体被提名用于进一步的功能调查.
- 该研究提供了一个模型,用于优先考虑其他转录因子结合序列中的变异.
关键词:
在CTCF中,CTCF是指CTCF.在CTCF的绑定站点.标注注释 标注注释疾病 疾病 疾病 疾病一个功能性的功能性功能.没有编码的非编码.确定优先级,确定优先级.监管部门的监管机构.选择的选择选择的选择.变化的变化变化变化.更多相关视频
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