相关实验视频
Updated: Jul 19, 2025

12:59
BEST: Barcode Enabled Sequencing of Tetrads
Published on: May 1, 2014
10.2K
在四代BAFME1家族中完成SAMD12重复扩张序列,并预测其存在
Takeshi Mizuguchi1, Tomoko Toyota2, Eriko Koshimizu3
1Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan. tmizu@yokohama-cu.ac.jp.
Journal of human genetics
|August 17, 2023
概括
良性成年家族肌性1型 (BAFME1) 涉及SAMD12的重复扩张. 这项研究发现,虽然重复扩张发生在几代人之间,但其他因素可能会影响BAFME1家族早期发作的预期.
科学领域:
- 遗传学 遗传学 是一个
- 神经学 神经学
- 分子生物学分子生物学
背景情况:
- 良性成人家族肌性1型 (BAFME1) 是一种神经系统疾病.
- 它的特征是成人发病,自体主导遗传,并与SAMD12重复扩张有关.
- 在BAFME1.1中观察到预期,即在随后的几代人中早些时候出现疾病的迹象.
研究的目的:
- 调查四代BAFME1家族中预期的遗传基础.
- 为了分析SAMD12的尺寸,结构和组成,它在几代人中重复.
- 探索SAMD12重复扩张和BAFME1.1中预测现象之间的关系.
主要方法:
- 利用纳米孔长读序列来分析SAMD12的重复扩张.
- 在一个受影响家庭的四代人中检查了重复的结构和尺寸.
- 与临床数据相关的重复特征,包括发作开始的年龄.
主要成果:
- 在BAFME1.1中确认了SAMD12重复的代际不稳定性.
- 在祖母-母亲-女儿三合体中观察到类似的重复结构,略有扩张.
- 尽管具有相似的重复结构,但发作发作的年龄 (14-52岁) 是可变的,这表明复杂的遗传模式.
- 在BAFME1.1中确定了SAMD12重复扩张和预期之间的复杂关系.
结论:
- 该研究强调,单靠SAMD12的重复扩张可能无法完全解释BAFME1.1中的预期.
- 其他遗传或表观遗传因素可能会调节BAFME1.1中的临床表现和预期.
- 需要进一步的研究来阐明这种神经障碍中预期背后的机制.
相关概念视频
Next-generation Sequencing
91.5K
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....
91.5K
Maxam-Gilbert Sequencing
11.2K
In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Challenges of the Maxam-Gilbert Method
The...
11.2K
RACE - Rapid Amplification of cDNA Ends
6.4K
Rapid Amplification of cDNA Ends, or RACE, is one of the most effective methods to obtain a full-length cDNA from an mRNA sequence between a known internal region to the unknown sequence at the 5’ or 3’ end. The unknown region is cloned in the cDNA by a gene-specific primer that binds the known end, and a hybrid primer that attaches a predefined anchor sequence to the unknown end of the cDNA. The sequence in between is amplified by PCR with an anchor primer and a gene-specific...
6.4K
Sanger Sequencing
754.8K
DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
754.8K

