突变的神经元导航3作为一种罕见的神经发育障碍的候选基因
Muhammad Umair1, Meshael Alharbi1, Essra Aloyouni1
1Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (MNGH), Riyadh, Saudi Arabia.
神经导航3 (NAV3) 基因中的新型框架转移变异与沙特患者的复杂神经发育障碍 (NDD) 有关. 这一发现将NAV3基因变异与人类NDD联系起来.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 分子生物学分子生物学
背景情况:
- 神经导航器3 (NAV3) 是一种主要在神经系统中表达的蛋白质,属于NAV1,NAV2和NAV3家族.
- NAV3蛋白含有保存的ATPase域 (AAA和卷轴-卷轴),对于各种细胞功能至关重要.
研究的目的:
- 在沙特试验中调查复杂的衰退性神经发育障碍 (NDD) 的遗传基础.
- 为了确定负责NDD的特定基因变异,并了解其分子影响.
主要方法:
- 整体外基因组测序 (WES) 用于识别遗传变异.
- 桑格测序,3D蛋白质建模和RT-qPCR被用于变异验证和功能分析.
主要成果:
- 在NAV3基因的第12个突变体中发现了一种双等位基因变体 (c.2604_2605delAG;p.Val870SerfsTer12).
- 在患者样本中观察到NAV3mRNA表达显著下降.
- 3D蛋白质建模表明NAV3蛋白质的整体二次结构中出现了破坏.
结论:
- 这项研究将NAV3基因中的双基变异与人类的神经发育障碍联系起来.
- 鉴定到的NAV3变异可能会损害蛋白质功能,导致观察到的NDD表型.
更多相关视频
08:22A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
00:06In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
相关概念视频
Genetic Lingo
Pleiotropy
Sex-linked Disorders
Genetic Screens
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
