相关实验视频

Updated: Jul 24, 2025

Exogenous Administration of Microsomes-associated Alpha-synuclein Aggregates to Primary Neurons As a Powerful Cell Model of Fibrils Formation

Exogenous Administration of Microsomes-associated Alpha-synuclein Aggregates to Primary Neurons As a Powerful Cell Model of Fibrils Formation

Published on: June 26, 2018

在SARS-COV-2中,尖端蛋白片段有助于α-synuclein的amyloidogenesis

Andrew D Chesney¹, Buddhadev Maiti¹, Ulrich H E Hansmann¹

¹Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA.

The Journal of chemical physics

|July 6, 2023

概括

在SARS-CoV-2尖端蛋白片段FKNIDGYFKI可能通过促进α-synuclein聚合加速帕金森病的发展. 这种特定的病毒将α-synuclein转移到粉样纤维的形成.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
病毒学病毒学

背景情况:

帕金森病的特点是α-syn蛋白聚合成粉样蛋白.
已经提出了COVID-19和帕金森病发病之间的潜在联系.
SARS-CoV-2 蛋白质含有可能触发α-syn 聚合的氨基基原体部分.

研究的目的:

调查特定的SARS-CoV-2蛋白质片段是否可以诱导α-synuclein聚合.
了解病毒蛋白可能影响帕金森病病理学的机制.

主要方法:

使用分子动力学模拟.
分析SARS-CoV-2尖端蛋白片段FKNIDGYFKI对α-synuclein单体结构的影响.
将结果与使用非特异性蛋白质片段的先前研究进行比较.

主要成果:

独特的SARS-CoV-2片段FKNIDGYFKI将α-synuclein单体转移到种子杆状纤维的构造.
这种病毒偏好地稳定了杆状纤维素多态,而不是旋转状结构.
观察到的效应是特定于SARS-CoV-2独特的片段.

结论:

在SARS-CoV-2尖端蛋白片段FKNIDGYFKI具有促进α-synuclein聚合的潜力,这是帕金森病的一个关键过程.
这一发现为COVID-19和帕金森病发病之间观察到的相关性提供了分子基础.
需要进一步的研究来探索这种相互作用的临床影响.

更多相关视频

A Method to Study α-Synuclein Toxicity and Aggregation Using a Humanized Yeast Model

A Method to Study α-Synuclein Toxicity and Aggregation Using a Humanized Yeast Model

Published on: November 25, 2022

Rapid Generation of Amyloid from Native Proteins In vitro

Rapid Generation of Amyloid from Native Proteins In vitro

Published on: December 5, 2013

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,...

Leaky Scanning

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...