稳定蛋白质折叠中间体的最佳策略
Mengshou Wang1, Liangrong Peng2, Baoguo Jia3
1School of Mathematics, Sun Yat-sen University, Guangzhou 510275, China.
The Journal of chemical physics
|October 25, 2024
概括
这项研究表明,使用化学添加剂的最佳蛋白质稳定策略遵循对线性加法的一种大爆炸控制方法. 这为提高各种应用中的蛋白质稳定性提供了有效的方法.
科学领域:
- 生物化学和生物物理学
- 化学工程是化学工程的重要组成部分.
- 药理学 药理学是指药理学的学科.
背景情况:
- 蛋白质稳定性对于结构分析,折叠动力学和功能性至关重要,在医学和工业中具有广泛的应用.
- 尽量减少稳定剂的使用是很重要的,因为潜在的副作用和成本.
- 需要最佳的蛋白质稳定策略来有效地提高稳定性.
研究的目的:
- 确定最佳控制策略,以使用化学稳定剂稳定蛋白质折叠中间体.
- 通过分析推导出线性稳定器加法策略的最佳切换时间.
- 将这些发现应用于现实世界的例子,例如红色素稳定.
主要方法:
- 在稳定剂影响下对蛋白质折叠动力学的数学建模.
- 导出最佳的控制策略,特别是对线性稳定剂添加的冲击冲击控制.
- 切换时间和相位图的分析探索.
- 用各种化学物质稳定 erythropoietin 的实验应用.
主要成果:
- 线性稳定剂添加的最佳控制策略是大爆炸控制.
- 通过相位图来推导和分析最佳切换时间的分析解决方案.
- 非线性稳定剂添加策略被证明可以打破大爆炸控制.
- 该理论被成功应用到稳定使用十种不同的化学物质的红蛋白.
结论:
- 这项研究提供了一个理论框架,用于使用最小化学稳定剂的最佳蛋白质稳定.
- 快速控制策略为稳定蛋白质折叠中间体提供了一种有效的方法.
- 研究结果为医学和工业中选择和使用稳定剂提供了实际指导.
- 这项研究加深了对蛋白质折叠动学的理解,并为蛋白质相关疾病的治疗提供了信息.
相关概念视频
Molecular Chaperones and Protein Folding
17.8K
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...
17.8K
Protein Folding
7.8K
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...
7.8K
Amyloid Fibrils
9.3K
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,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
9.3K
Protein Folding Quality Check in the RER
3.7K
ER is the primary site for the maturation and folding of soluble and transmembrane secretory proteins. The calnexin cycle is a specific chaperone system that folds and assesses the confirmation of N-glycosylated proteins before they can exit the ER lumen. The primary players of this quality check pipeline are the lectins, ER-resident chaperones, and a glucosyl transferase enzyme. In case the calnexin system in the lumen fails to salvage a misfolded protein, it is transported to the cytoplasm...
3.7K
The Unfolded Protein Response
4.4K
The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...
4.4K
Protein Organization
136.7K
Overview
136.7K


