靠近的16p11.2 BP4-5 CNVs的性作用背后的解机制
Chiara Auwerx1, Samuel Moix2, Zoltán Kutalik2
1Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland; Department of Computational Biology, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics, Lausanne, Switzerland; University Center for Primary Care and Public Health, Lausanne, Switzerland.
American journal of human genetics
|September 27, 2024
概括
16p11.2 BP4-5副本数变体 (CNVs) 影响许多特征,删除更有害. 许多关联与体重指数 (BMI) 有关,这表明对健康结果的间接影响.
科学领域:
- 遗传学 是一个遗传学.
- 基因组医学是基因组医学.
- 人类遗传学 人类遗传学
背景情况:
- 16p11.2 BP4-5副本数变异 (CNV) 是具有广泛表型影响的基因组疾病的重要原因.
- 驱动这些CNV的类变异的基本机制尚未完全理解.
- 在大群体群体中研究CNV对于了解它们对复杂特征的影响至关重要.
研究的目的:
- 为了研究16p11.2 BP4-5 CNVs. 的全现象效应.
- 探索 CNV 相关表型背后的剂量依赖机制.
- 区分直接的CNV影响与间接的影响,通过其他特征,如BMI和教育程度 (EA) 中介.
主要方法:
- 在英国生物库参与者中进行的全现象关联研究 (PheWAS).
- 使用四种剂量模型对删除和重复载体的分析.
- 调整为介导因素 (BMI,身高,EA) 和孟德尔随机化.
主要成果:
- 39%的测试表型与16p11.2 BP4-5 CNVs相关.
- 删除特定效应比重复效应更明显.
- 16个与删除相关的特征与BMI有关,其中13个通过孟德尔随机化确认是BMI影响的次要因素.
- 10个表型,包括肌肉骨特征和器官损伤风险,在控制调解剂后仍然存在关联.
结论:
- 16p11.2 BP4-5 CNVs通过改变的BMI和EA的直接影响和间接后果,表现出复杂的型.
- 特定特征的剂量机制有助于观察到的表型变异.
- 了解这些机制是临床管理和遗传咨询的关键.
相关概念视频
Comparing Copy Number Variations and SNPs
17.6K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
17.6K
Pleiotropy
40.3K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
40.3K
Single Nucleotide Polymorphisms-SNPs
14.8K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
14.8K
Genome-wide Association Studies-GWAS
13.2K
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...
13.2K
Genetic Lingo
101.8K
Overview
101.8K
Incomplete Dominance
22.0K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
22.0K


