解读突变的远程影响:使用弹性网络模型和蛋白质结构网络的综合方法
Karolina Krzesińska1, Kristine Degn1, Alicia Llorente2
1Cancer Structural Biology, Danish Cancer Institute, Strandboulevarden 49, 2100 Copenhagen, Denmark; Cancer Systems Biology, Section of Bioinformatics, Health and Technology Department, Technical University of Denmark, Lyngby, Denmark.
Journal of molecular biology
|July 30, 2025
概括
这项研究完善了MAVISp框架,以系统地检测遗传变异对蛋白质结构和功能的远程影响. 优化的参数和过提高了与疾病相关的全变异的识别.
科学领域:
- 生物化学和结构生物学
- 计算生物学 计算生物学
- 遗传学 遗传学 是一个
背景情况:
- 了解遗传变异对蛋白质结构和功能的影响,对于阐明疾病机制至关重要.
- MAVISp框架提供了一种系统的方法来评估蛋白质的结构效应,包括长期影响.
- 目前的方法需要改进,以准确预测全变异效应.
研究的目的:
- 批判性地评估和完善MAVISp框架中的LONG_RANGE模块.
- 优化检测受遗传变异影响的显著响应部位的参数.
- 建立一个强大的工作流程,用于识别全蛋白变体和理解结构通信.
主要方法:
- 从400多种蛋白质中获取数据,以优化MAVISp参数.
- 实施过工作流程,集成全性自由能量,距离约束,溶剂可访问性和口袋定位.
- 基准结果与来自深度突变扫描的实验数据进行比较.
主要成果:
- 确定5.5 Å的距离值是最小化局部接触的最佳值,同时保持远程影响.
- 提出了评估蛋白质全球性的三个指标,解决了非球状蛋白质弹性网络模型的局限性.
- 证明了分子动力学模拟和路径分析的潜力,以确认全性通讯路径.
结论:
- 建立了一个强大而可扩展的工作流程,用于检测全性蛋白质变体.
- 精细的MAVISp框架增强了对蛋白质结构通信的理解.
- 提供了有关疾病相关蛋白质变体及其功能影响的见解.
相关概念视频
02:26Protein Networks
4.1K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.1K
02:04Protein-protein Interfaces
13.3K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
13.3K