相关实验视频

Updated: Jul 24, 2025

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis

Published on: July 16, 2021

在肌缩侧硬化基因中的错误变异的蛋白质和转录特征的特征

Allison A Dilliott^1,2, Seulki Kwon³, Guy A Rouleau^1,2,4

¹Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 0G4, Canada.

Brain : a journal of neurology

|July 3, 2023

概括

研究人员使用蛋白质组和转录组数据分析了异构侧面硬化症 (ALS) 基因中的误解变异. 他们发现变体富含特定蛋白质结构和表达水平,有助于预测ALS的病原性.

科学领域:

遗传学是一个遗传学.
神经科学是一个神经科学.
生物信息学是一种生物信息学.

背景情况:

肌缩性侧面硬化症 (ALS) 有许多相关基因,有许多意义不明的错误变体.
大规模测序工作为表征这些变体提供了有价值的数据.

研究的目的:

在24个ALS相关基因中的误解变体进行蛋白质组和转录组特征.
为了确定蛋白质组和转录组特征,表明ALS的变异性病原性.

主要方法:

来自ALS知识门户网站和项目Mine ALS测序联盟的数据.
标注的变体与种群频率,致病性,蛋白质特征,结构数据 (AlphaFold) 和表达水平 (GTEx).
应用变体丰富和基因负担测试基于内置的蛋白质和转录特征.

主要成果:

在ALS患者的误解变异中,β-sheet,alpha-helices和核心/埋藏蛋白质区域得到了丰富.
疏水性残留物,偏差区域和感兴趣区域显示ALS变体的丰富.
高和中表达变体在整个组织中得到丰富,特别是在大脑中.
个别基因被确定为特定丰富信号的驱动因素,通过SOD1案例研究证明了这一点.

结论:

蛋白质组和转录组特征是ALS误解变体致病性的关键指标.
这些已识别的特征与与神经发育障碍有关的特征有所区别.
这些发现有助于定义变异性致病性和了解ALS遗传学.

关键词:

骨髓缩侧面硬化症 (ALS) 是一种错误的意义变体的变体蛋白质的特性蛋白质的特征蛋白质的特征转录的特征转录的特征不确定意义的变体.

更多相关视频

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

Optogenetic Phase Transition of TDP-43 in Spinal Motor Neurons of Zebrafish Larvae

Optogenetic Phase Transition of TDP-43 in Spinal Motor Neurons of Zebrafish Larvae

Published on: February 25, 2022

相关概念视频

Amyloid Fibrils

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...

Mutations

Mutations

RNA Splicing

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...

Ribosome Profiling

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...