相关实验视频
Updated: Jul 15, 2026

10:47
Immuno-fluorescence Assay of Leptospiral Surface-exposed Proteins
Published on: July 1, 2011
概括
大多数蛋白质表面上的连续抗原决定因素,如烟草马赛克病毒蛋白 (TMVP),与高分段移动性有关. 这种灵活性有助于抗原-抗体相互作用,优于水友性作为抗原性的预测因素.
科学领域:
- 结构生物学是结构生物学.
- 免疫化学 免疫化学
- 蛋白质动力学 蛋白质动力学
背景情况:
- 抗原决定因素是抗体识别的关键位置.
- 了解抗原性的结构基础对于疫苗开发和免疫学至关重要.
- 之前的研究已经探索了在预测抗原性部位时的水友性等因素.
研究的目的:
- 研究蛋白质结构,特别是细分移动性和连续抗原决定因素的位置之间的关系.
- 为了比较细分移动性 (温度因子) 与抗原性水友性的预测能力.
主要方法:
- 对烟草马赛克病毒蛋白 (TMVP),肌球蛋白和酶的X射线结晶学数据的分析.
- 高温因素 (表明移动性) 和已知的抗原决定因素之间的相关性分析.
- 将这种相关性与水友性和抗原性之间的相关性进行比较.
主要成果:
- 连续抗原决定因素在很大程度上与具有高分段移动性的表面区域 (高温因素) 相对应.
- 蛋白质的移动性似乎促进了对抗体结合部位的适应.
- 温度因素与抗原性比与水友性有更强的相关性.
结论:
- 细分流动性是与连续抗原决定因素相关的重要结构特征.
- 蛋白质的灵活性在免疫识别中起着关键作用.
- 高温因素是抗原性比水友性更好的预测因素.
相关概念视频
Cross-reactivity
Overview
Antigens Involved in Adaptive Immunity
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
Diversity of Antigen Receptors
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...

