识别相似的过敏原和潜在的交叉反应区域,使用过敏原蛋白结构数据库 (SDAP) 工具和D图
1Department of Biochemistry and Molecular Biology, Institute for Human Infections and Immunity (IHII), University of Texas Medical Branch, Galveston, TX, USA. chschein@utmb.edu.
Methods in molecular biology (Clifton, N.J.)
|September 22, 2023
概括
过敏性蛋白质结构数据库 (SDAP) 通过将新型蛋白质与已知的过敏原进行比较,帮助识别潜在的过敏性. 它使用相似性搜索和蛋白质结构映射来分析IgE表位和T细胞表位.
科学领域:
- 免疫学 免疫学 免疫学
- 生物信息学是一种生物信息学.
- 结构生物学 结构生物学
背景情况:
- 实验室经常使用点点和微阵列等技术识别IgE结合蛋白和表位.
- 了解新发现的蛋白质与已知的过敏原之间的关系对于评估潜在的过敏性至关重要.
研究的目的:
- 描述使用过敏性蛋白质结构数据库 (SDAP) 工具来比较新型蛋白质和与已知的过敏原.
- 通过利用SDAP的搜索和分析功能,指导用户确定未知的蛋白质的潜在过敏性.
主要方法:
- 使用SDAP的快速搜索工具来识别新型蛋白/和过敏原之间的序列相似性.
- 使用SDAP的蛋白质结构映射来比较序列并识别IgE表位.
- 应用D图程序以基于计算的交特性距离 (PD) 值来可视化相似性.
主要成果:
- SDAP可以识别与已知的过敏原相似的序列,包括具有低属性距离 (PD) 值的序列.
- 蛋白质结构映射提供了对过敏原表面的序列的视觉比较.
- D-图表程序可以基于交叉PD值进行类似序列的二维图表.
结论:
- SDAP提供了一个全面的平台来分析蛋白质的过敏性和表位相似性.
- 数据库及其相关工具简化了将新型蛋白序列与已建立的过敏原家族联系起来的过程.
- 这种方法有助于预测和理解对潜在过敏原的免疫反应.
更多相关视频
相关概念视频
Cross-reactivity
31.2K
Overview
31.2K
Allergic Reactions
27.7K
Overview
27.7K
Antibody Structure
60.3K
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
60.3K
Protein Networks
4.0K
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,...
4.0K
Allergic Drug Reactions
873
Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
873
Protein-protein Interfaces
12.5K
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...
12.5K


