在人类基因组上使用纳米孔测序检测和注释可转移元素插入和删除
Javier Cuenca-Guardiola1, Belén de la Morena-Barrio2, Esther Navarro-Manzano2
1Departamento de Informática y Sistemas, Universidad de Murcia, CEIR Campus Mare Nostrum, IMIB-Pascual Parrilla, Facultad de Informática, Campus de Espinardo, Murcia 30100, Spain.
iScience
|November 13, 2023
概括
可移植元素 (TE) 可以改变人类基因组,可能导致疾病. 这项研究在患者中发现了许多新的TE变体,表明与神经功能和自闭症有关.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 人类遗传学 人类遗传学
背景情况:
- 重复的序列,包括可转移元素 (TE),构成了人类基因组的很大一部分.
- 转基因具有在基因组内移动的能力,导致诸如插入和删除之类的遗传变异,这可能具有病原性影响.
研究的目的:
- 为了识别和表征抗血缺乏症患者基因组中的可移植元素 (TE) 变异.
- 调查已识别的TE变体的潜在功能影响和基因组分布.
主要方法:
- 利用长读纳米孔测序进行全面的TE变体检测.
- 分析了24名被诊断为抗凝血素缺乏症的患者的基因组.
主要成果:
- 发现了7,344个TE插入和3,056个TE删除,其中有2,926个以前未被目录的新变异.
- TE插入影响了3,955个基因,在外子,内子和促进体中发生.
- 基因注释和丰富分析表明TE变体与包括自闭症在内的神经元相关功能之间存在显著的关联.
结论:
- 该研究强调了人类基因组中新型TE变异的大量存在及其在遗传疾病中的潜在作用.
- 强调需要在人类基因组中建立一个全面的TEs地图,以帮助识别新的与疾病相关的TEs.
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