STXBP1 forms amyloid-like aggregates in rat brain and demonstrates amyloid properties in bacterial expression system.

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
A V Chirinskaite, V A Siniukova, M E Velizhanina, J V Sopova, T A Belashova, S P Zadorsky
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引用次数: 3

Abstract

Amyloids are the fibrillar protein aggregates with cross-β structure. Traditionally amyloids were associated with pathology, however, nowadays more data is emerging about functional amyloids playing essential roles in cellular processes. We conducted screening for functional amyloids in rat brain. One of the identified proteins was STXBP1 taking part in vesicular transport and neurotransmitter secretion. Using SDD-AGE and protein fractionation we found out that STXBP1 forms small detergent-insoluble aggregates in rat brain. With immunoprecipitation analysis and C-DAG system, we showed that STXBP1 forms amyloid-like fibrils. Thus, STXBP1 demonstrates amyloid properties in rat brain and in bacterial expression system.

Abstract Image

Abstract Image

Abstract Image

STXBP1在大鼠脑内形成淀粉样聚集体,并在细菌表达系统中表现出淀粉样特性。
淀粉样蛋白是具有交叉β结构的纤维蛋白聚集体。传统上,淀粉样蛋白与病理有关,然而,现在越来越多的数据显示,功能性淀粉样蛋白在细胞过程中起着重要作用。我们对大鼠脑内的功能性淀粉样蛋白进行了筛选。其中一个被鉴定的蛋白是STXBP1,参与水疱转运和神经递质分泌。通过sds - age和蛋白分离,我们发现STXBP1在大鼠脑内形成小的洗涤剂不溶性聚集体。通过免疫沉淀分析和C-DAG系统,我们发现STXBP1形成淀粉样原纤维。因此,STXBP1在大鼠脑和细菌表达系统中表现出淀粉样蛋白特性。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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