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A Bacterially Expressed SARS-CoV-2 Receptor Binding Domain Fused With Cross-Reacting Material 197 A-Domain Elicits High Level of Neutralizing Antibodies in Mice

Front Microbiol. 2022-04; 
Liqin Liu, Tingting Chen, Lizhi Zhou, Jie Sun, Yuqian Li, Meifeng Nie, Hualong Xiong, Yuhe Zhu, Wenhui Xue, Yangtao Wu, Tingting Li, Tianying Zhang, Zhibo Kong, Hai Yu, Jun Zhang, Ying Gu, Qingbing Zheng, Qinjian Zhao, Ningshao Xia, Shaowei Li
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Catalog Peptides … SARS-CoV-2 RBD protein (15-mer peptides with 11–amino acid overlap covering the entire RBD protein; GenScript; … were stimulated with SARS-CoV-2 RBD overlapping peptides, and … Get A Quote

摘要

The Coronavirus disease 2019 (COVID-19) pandemic presents an unprecedented public health crisis worldwide. Although several vaccines are available, the global supply of vaccines, particularly within developing countries, is inadequate, and this necessitates a need for the development of less expensive, accessible vaccine options. To this end, here, we used the expression system to produce a recombinant fusion protein comprising the receptor binding domain (RBD) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2; residues 319-541) and the fragment A domain of Cross-Reacting Material 197 (CRM197); hereafter, CRMA-RBD. We show that this CRMA-RBD fusion protein has excellent physicochemical properties ... More

关键词

CRM197 A domain, Escherichia coli expression system, SARS-CoV-2, adjuvant, receptor binding domain, vaccine