Related Experiment Video
Updated: Aug 3, 2025
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
High-throughput screening of mutations affecting SARS-CoV-2 spike functions.
Shuai Xia1, Zezhong Liu1, Shibo Jiang1
1Key Laboratory of Medical Molecular Virology, Ministry of Education (MOE)/National Health Commission (NHC)/Chinese Academy of Medical Sciences (CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, School of Pharmacy, Shanghai Medical College, Fudan University, Shanghai 200032, China.
Scientists mapped how mutations in the SARS-CoV-2 spike protein affect immune evasion and infectivity using a new deep mutational scanning platform. This helps understand viral evolution and develop better clinical strategies.
Area of Science:
- Virology
- Molecular Biology
- Immunology
Background:
- The SARS-CoV-2 spike (S) protein is critical for viral entry, immune evasion, and transmission.
- Rapid evolution of the S protein poses challenges for therapeutic and vaccine development.
Purpose of the Study:
- To develop and utilize a novel deep mutational scanning (DMS) platform.
- To map the functional impact of SARS-CoV-2 S protein mutations on immune evasion and viral infectivity.
Main Methods:
- Deep mutational scanning (DMS) was employed to assay thousands of S protein variants.
- Functional assays assessed the effects of mutations on viral infectivity and antibody binding.
Main Results:
- The DMS platform successfully identified key S protein residues and mutations influencing immune escape.
- Specific mutations were correlated with altered viral infectivity and host immune responses.
Conclusions:
- The developed DMS platform provides a powerful tool for understanding SARS-CoV-2 evolution.
- Findings offer insights into viral pathogenesis and inform strategies against emerging variants.
More Related Videos
07:53A Fluorogenic Peptide Cleavage Assay to Screen for Proteolytic Activity: Applications for coronavirus spike protein activation
Published on: January 9, 2019
10:25Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection
Published on: June 5, 2021