使用长读数测序进行遗传分析,以克服VWF基因中的困难
Sheng Ye1,2, Yuka Eura1, Masanori Matsumoto3
1Department of Molecular Pathogenesis, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Research and practice in thrombosis and haemostasis
|June 18, 2025
概括
使用牛津纳米孔技术 (ONT) 的长读测序提供了一种分析威尔布兰德因子 (VWF) 基因的新方法. 这种方法可以通过识别遗传变异来改善·维勒布兰德病 (VWD) 的诊断.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 临床遗传学 临床遗传学
背景情况:
- 维莱布兰德因子 (VWF) 基因中的遗传缺陷导致维莱布兰德病 (VWD).
- 准确识别VWF变异对于诊断和管理VWD至关重要.
- 由于VWF基因的大小和伪基因的存在,使用传统的测序方法复杂化了基因分析.
研究的目的:
- 开发和验证使用牛津纳米孔技术 (ONT) 进行全面的VWF基因分析的长期阅读测序方法.
- 克服与测序复杂VWF基因及其伪基因 (VWFP1) 相关的挑战.
主要方法:
- 分析了来自健康捐赠者和VWD患者的基因组DNA.
- 长距离聚合酶连锁反应 (PCR) 产生了21个覆盖整个VWF基因的安普利康.
- 进行了ONT纳米孔测序,并使用Clair3,Longshot和Sniffles软件分析了数据.
- 候选变异被证实使用桑格测序和单质类型.
主要成果:
- ONT纳米孔测序成功测序了整个VWF基因.
- 每个患者样本确定了200多种变体.
- 在一个病人身上发现了一种罕见的误解变体 (p.(Gln2442His)).
- 一个最初识别的删除被证实是远程PCR人工物,突出了方法论上的考虑.
结论:
- ONT纳米孔测序为识别VWF基因内的变异提供了有效的解决方案.
- 这种长期阅读的测序方法有可能提高VWF疾病的诊断能力.
相关概念视频
01:11Genome-wide Association Studies-GWAS
14.4K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
14.4K
02:54Evolutionary Relationships through Genome Comparisons
6.2K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.2K
03:00Next-generation Sequencing
92.8K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
92.8K