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Updated: Jun 12, 2025

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

复制号变异分析对单源性病患者的重要性

Laura R Claus¹, Robert F Ernst¹, Martin G Elferink¹

¹Department of Genetics, University Medical Centre Utrecht, Utrecht, the Netherlands.

Kidney international reports

|September 18, 2024

概括

复制数变异 (CNV) 分析显著改善了病遗传检测,诊断产量至少增加了10.5%. 这种基本分析应该经常包括在病患者的遗传检测中.

科学领域:

遗传学是一个遗传学.
腎臟病學 (nephrology) 是一種醫學專業.
基因组医学是基因组医学.

背景情况:

基因检测可以确定病的单一原因,其中单核酸变体 (SNV) 和副本数变体 (CNV) 是关键的贡献者.
CNV分析通常被排除在脏疾病的标准遗传检测协议之外,这可能会限制诊断能力.

研究的目的:

评估CNV分析在大量基因检测病患者队列中的诊断价值和贡献.
确定CNV检测对病遗传检测遗传检测整体诊断产量的影响.

主要方法:

从2014年至2022年5月期间测试的2432名病患者的遗传测试数据的回顾性分析.
将现有的SNV和CNV结果与新执行的CNV分析结合起来.
根据美国医学遗传学和基因组学学院 (ACMG) 的分类和临床相关性评估诊断产量.

主要成果:

在整个队列中达到23%的最低诊断收益率.
单独的CNV分析对诊断产量贡献了2.4%.
CNV分析占有10.5%的阳性遗传测试,对脏和尿路的先天性异常 (CAKUT) 和早期出现的慢性病的影响更大.
基于exome的CNV调用证明了效率,并确定了COL4A4中复杂的结构变异.

结论:

在病遗传检测中,CNV分析具有相当大的诊断价值.
建议定期纳入CNV分析,以提高诊断产量和患者护理.
基于外体的CNV检测是识别病遗传原因的有效方法.

关键词:

在CNV分析中,分析了CNV.在 COL4A4A4 中使用.非常深的深度.诊断产出率是指诊断产出率是指诊断产出率.基因检测基因检测是指基因检测.阴性生殖学阴性生殖学

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