德诺沃设计的细胞透自组装器,具有独特的三级结构
Jaehui Park1, Eiki Yamashita2, Jaehoon Yu3,4
1College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea.
ACS omega
|August 5, 2024
概括
两性LK-3在低度下形成稳定的六性美洲寡合体,直接将这些结构与增强的细胞透联系起来. 酵素混合物进一步提高了这种细胞透能力.
科学领域:
- 生物化学 生物化学
- 生物物理学的生物物理.
- 药物运输 药物运输 药物运输
背景情况:
- 蛋白质设计的进步与生物制药的发展并行.
- 蛋白质四级结构,如寡合体,对于功能至关重要.
- 的细胞透对于药物输送至关重要,但寡合体的不稳定性阻碍了研究.
研究的目的:
- 描述两性病LK-3的寡合化状态.
- 研究LK-3寡合体在细胞透中的功能作用.
- 探讨对寡合化和细胞透的反原体混合物的影响.
主要方法:
- 用X射线结晶学来确定原子结构.
- 福斯特共振能量转移 (FRET) 来评估寡合化和细胞透.
- 原生质谱 (MS) 用于确认高阶寡合体.
- 不同扫描热量计 (DSC) 分析热稳定性.
主要成果:
- LK-3 形成稳定的六聚体 (二聚体的三聚体),具有疏水性核心.
- LK-3的寡合体形成与增强的细胞透相关.
- 1:1的L/D-二聚体混合物显示,与纯粹的反反聚体相比,细胞透率更高.
- 反体混合物促进功能性寡合体的形成.
结论:
- 两性LK-3在低纳米分子度下形成功能性寡合体.
- 寡合化是LK-3细胞透效率的一个关键决定因素.
- 异构体混合物提供了一种增强细胞透功能的策略.
相关概念视频
Protein Organization
137.1K
Overview
137.1K
Protein Folding
7.9K
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...
7.9K
Protein Complex Assembly
10.6K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
10.6K


