相关实验视频

Updated: May 4, 2026

Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter

Detection of SARS-CoV-2 Receptor-Binding Domain Antibody using a HiBiT-Based Bioreporter

Published on: August 12, 2021

针对SARS-CoV-2尖端结合抗体的逃生途径的高分辨率分析

Meghan E Garrett¹, Jared Galloway², Helen Y Chu³

¹Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98102, USA; Molecular and Cellular Biology Graduate Program, University of Washington and Fred Hutchinson Cancer Research Center, Seattle, WA 98195, USA.

|May 19, 2021

概括

了解SARS-CoV-2的演变是长期免疫力的关键. 这项研究揭示了尖蛋白中的突变如何使病毒逃脱抗体保护,突出了个体免疫反应的变化.

科学领域:

病毒学
免疫学
分子生物学

背景情况:

确定对SARS-CoV-2的长期保护性免疫力至关重要.
了解病毒的演变和免疫逃生机制对于控制疫情至关重要.
针对SARS-CoV-2尖端 (S) 蛋白的抗体是免疫保护的核心.

研究的目的:

为了全面地绘制SARS-CoV-2尖端蛋白的抗体逃生途径.
识别具有抗体耐药性的特定区域和突变.
了解抗体介导病毒进化的个体变异.

主要方法:

使用 Phage-DMS,一种高吞吐率的方法来检测所有可能的突变对蛋白质结合的影响.
分析了COVID-19康复期血中的抗体与SARS-CoV-2 S蛋白质的结合特征.
免疫主导区域和其他表位的特征突变效应.

主要成果:

确定了S蛋白的两个关键抗体结合区域:融合和heptad重复区域2的上游链接区域.
在这些免疫主导区域内观察到可变的脱离突变.
记录了抗体逃逸概况和向表位的个体变异.

结论:

提供了对SARS-CoV-2潜在抗体逃生途径的详细了解.
在免疫主导区域内显示出抗体逃生突变的显著变异性.
表明抗体介导的病毒进化可能会显示个体的变化.

关键词:

美国一个DMS 冠状病毒斯派克抗体深度突变扫描表位图绘制脱离突变菌体显示

更多相关视频

High-throughput Confocal Imaging of Quantum Dot-Conjugated SARS-CoV-2 Spike Trimers to Track Binding and Endocytosis in HEK293T Cells

High-throughput Confocal Imaging of Quantum Dot-Conjugated SARS-CoV-2 Spike Trimers to Track Binding and Endocytosis in HEK293T Cells

Published on: April 21, 2022

Author Spotlight: Advancing Antiviral Strategies Through Novel Immunocapture and Mass Spectrometry Techniques

Author Spotlight: Advancing Antiviral Strategies Through Novel Immunocapture and Mass Spectrometry Techniques

Published on: January 12, 2024

相关概念视频

Conjugated Proteins

Conjugated Proteins

Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...