相关实验视频

Updated: May 20, 2025

Engineering Antiviral Agents via Surface Plasmon Resonance

Engineering Antiviral Agents via Surface Plasmon Resonance

Published on: June 14, 2022

尼帕病毒受体结合蛋白的功能和抗原格局

Brendan B Larsen¹, Teagan McMahon¹, Jack T Brown²

¹Basic Sciences Division and Computational Biology Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.

|March 25, 2025

概括

尼帕病毒受体结合蛋白的突变会影响细胞进入和抗体逃离. 了解这些变化对于开发有效的尼帕病毒疫苗和疗法至关重要.

科学领域:

病毒学
免疫学
结构生物学

背景情况:

尼帕病毒通过动物传播引起严重的,往往致命的人类感染.
病毒受体结合蛋白 (RBP) 对于宿主细胞的结合至关重要,也是中和抗体的主要点.

研究的目的:

综合分析尼帕病毒RBP中所有氨基酸突变对细胞进入,受体结合和抗体逃逸的影响.
确定功能上受限制的区域和RBP的潜在进化途径.

主要方法:

使用深度突变扫描系统评估RBP突变的功能影响.
分析包括测量细胞进入,与以弗林受体结合以及脱离中和抗体的影响.

主要成果:

在RBP中确定功能上受限制的区域,包括参与寡合化的区域.
发现了影响RBP与其以素受体结合的突变.
绘制了六种不同的抗RBP抗体的脱离突变,并指出尼帕病毒天然菌株的存在有限.

结论:

这项研究为尼帕病毒RBP的功能和抗原演变提供了关键的见解.
这些发现可以指导开发更强大的基于抗体的治疗方法和针对尼帕病毒的疫苗.

关键词:

尼帕深度突变扫描病毒的演变

更多相关视频

Peptide Scanning-assisted Identification of a Monoclonal Antibody-recognized Linear B-cell Epitope

Peptide Scanning-assisted Identification of a Monoclonal Antibody-recognized Linear B-cell Epitope

Published on: March 24, 2017

Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting

Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting

Published on: March 1, 2019

相关概念视频

Cross-reactivity

Cross-reactivity

Leaky Scanning

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...