热触发的折叠蛋白质的自我组装成囊泡
Won Min Park1, Julie A Champion
1School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.
Journal of the American Chemical Society
|December 16, 2014
概括
研究人员使用温度敏感的融合蛋白制造了自我组装的蛋白质囊泡. 这些新型蛋白质载体可以封装各种货物,提供多功能生物应用.
科学领域:
- 生物材料科学 生物材料科学
- 蛋白质工程是指蛋白质工程.
- 纳米技术 纳米技术
背景情况:
- 蛋白质可以自组装成复杂的结构.
- 设计功能性基于蛋白质的材料是一个活跃的研究领域.
- 温度敏感的聚合物具有可调节的自组装特性.
研究的目的:
- 开发一种使用自组装制造基于蛋白质的囊泡的方法.
- 为了研究这些蛋白质囊泡的封装能力.
- 探索蛋白质囊泡作为功能性生物载体的潜力.
主要方法:
- 构建复合融合蛋白与氨酸拉链卷圈和球状蛋白或弹性类多.
- 在水溶液中诱导自我组装成"棒线圈"和"球体-棒线圈"两性生物.
- 使用温度响应逆相过渡来形成空心囊泡.
- 在囊泡中研究蛋白质协体,小分子和纳米颗粒的封装.
主要成果:
- 通过热触发的自我组装成功形成中空蛋白质囊泡.
- 证明蛋白质囊泡膜优先封装共同形成的蛋白质协体.
- 展示了这些囊泡能够封装各种货物的能力,包括小分子和纳米粒子.
- 建立了一个创建具有固有的生物功能的蛋白质囊泡的多功能策略.
结论:
- 热触发的自我组装为构建蛋白质囊泡提供了一个强大的方法.
- 开发出来的蛋白质囊泡表现出有选择性的封装特性.
- 这种方法为创建具有广泛适用性的基于蛋白质的新型输送车辆提供了一个有希望的平台.
相关概念视频
Molecular Chaperones and Protein Folding
21.1K
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
21.1K
Molecular Chaperones and Protein Folding
15.8K
15.8K
Pinching-off of Coated Vesicles
4.5K
Vesicle budding is orchestrated by distinct cytosolic proteins such as adaptor proteins, coat proteins, and GTPases. To initiate vesicle budding, membrane-bending proteins containing crescent-shaped BAR domains bind to the lipid heads in the bilayer and distort the membrane to form a protein-coated vesicle bud. Adaptors proteins such as AP2 for clathrin-coated vesicles can nucleate on the deformed membrane. Finally, coat proteins such as clathrin or COPI and COPII assemble into a coat forming...
4.5K
Protein Folding
12.8K
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
12.8K
Protein Folding
131.5K
Overview
131.5K
Protein Folding
36.8K
36.8K


