进一步证实了RNU4ATAC变异导致乔伯特综合征与骨参与的进一步证据
Fulvio D'Abrusco1, Simone Gana1, Enrico Alfei2
1Neurogenetics Research Centre, IRCCS Mondino Foundation, Pavia, Italy.
Journal of medical genetics
|September 11, 2025
概括
RNU4ATAC基因中的致病变体与涉及骨和神经问题的复杂纤毛病有关,包括牙标志. 通过重新分析外基因组测序数据,在伯特综合征患者中确定了这些非编码变异.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 发展生物学 发展生物学
背景情况:
- RNU4ATAC是一种非编码基因,对小结合体至关重要.
- 在RNU4ATAC的突变导致综合征性骨疾病与递归遗传.
- 最近,在患有综合征表型和牙标志 (MTS) 的患者中发现了双RNU4ATAC变异,这是朱伯特综合征 (JS) 的特征.
研究的目的:
- 研究RNU4ATAC变异在被诊断为乔伯特综合征的患者中所起的作用,这些患者在已知的JS相关基因中缺乏编码变异.
- 扩大对与RNU4ATAC突变相关的表型谱的理解.
主要方法:
- 重新分析53名JS患者的外基因组测序 (ES) 数据.
- 在复合异构性中识别和描述RNU4ATAC变体.
主要成果:
- 在三名患有JS的试验者中发现了四种RNU4ATAC变异 (n.16G>A,n.51G>A,n.13C>T,n.30G>A),占以前不明原因病例的5.6%.
- 所有受影响的患者都出现了MTS和JS和RNU4ATAC相关骨疾病的临床特征重叠.
- 这项研究在显著比例的JS患者中发现了非编码变异,这些患者在已知的基因中对编码变异负面.
结论:
- RNU4ATAC的致病变体有助于复杂的神经骨纤维病变的现型,扩大了已知的RNU4ATAC相关疾病的范围.
- 对外体序列的重新分析对于发现常规诊断方法可能错过的非编码变异至关重要.
- 这凸显了在神经发育障碍的遗传诊断中考虑非编码区域的重要性.
关键词:
遗传学 遗传学 遗传学 是一个相关概念视频
Rous Sarcoma Virus (RSV) and Cancer
6.2K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
6.2K
Single Nucleotide Polymorphisms-SNPs
17.9K
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,...
17.9K
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
501
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
501
Animal Mitochondrial Genetics
9.0K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.0K
Disorders of the Skeletal Muscle
1.7K
The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
1.7K
The Retinoblastoma Gene
4.7K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
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 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,...
4.7K


