通过使用外体序列测序识别一种自体主导性无完整氨基生成的新型因果FAM83H变异
Rick Kamps1, Herm Martens2, Bart de Koning3
1Department of Translational Genomics, Maastricht University, Maastricht, the Netherlands.
Molecular genetics & genomic medicine
|June 13, 2025
概括
研究人员在FAM83H中发现了一种新型基因变异,导致荷兰一家家庭的自体主导低化乳腺生成不完美症 (ADHCAI). 这一发现促进了对遗传牙面膜疾病的理解.
科学领域:
- 遗传学 是一个遗传学.
- 牙科 牙科是指牙科的专业.
- 分子生物学分子生物学
背景情况:
- 牙不完美化 (AI) 是一种罕见的遗传疾病,影响牙质形成.
- 人工智能呈现了14种不同的亚型,每个都有独特的遗传模式.
- 自体主导低化AI (ADHCAI) 是需要遗传调查的亚型之一.
研究的目的:
- 为了确定一个荷兰大家庭中负责ADHCAI的特定基因.
- 为了阐明这种队列中质缺陷的遗传基础.
主要方法:
- 整体外体序列测序 (WES) 用于分析试验者的DNA.
- 候选基因分析侧重于以前与自体主导AI相关的八种基因.
- 桑格测序,基因型-表型相关性和共同分离分析证实了已识别的变种.
主要成果:
- 受影响的个体在所有牙中表现出普遍和严重的牙缺陷.
- 在FAM83H基因中发现了一种新的无意义变异c.1055C>A p.
- 这种FAM83H变异在家族内与ADHCAI表型分离.
结论:
- 在FAM83H中发现了一种新的,致病性,蛋白质截断变体.
- 这种变异与自身主导的低化AI (ADHCAI) 相关.
- 这些发现有助于对非完美的乳腺发育亚型的遗传理解.
相关概念视频
Incomplete Dominance
22.2K
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.
22.2K
Cohesins
4.4K
Cohesin protein complexes are a molecular glue that holds two sister chromatids together. They play an important role both in mitosis and meiosis. In mitosis, all cohesin complexes present on the chromosomes are removed before the start of the anaphase stage.
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
4.4K
Pedigree Analysis
84.1K
Overview
84.1K
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
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


