期刊
TOXINS
卷 14, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/toxins14100683
关键词
SARS-CoV-2; nucleocapsid protein; phage display; M13 phage; p3 protein
资金
- Foundation of State Key Laboratory of NBC Protection for Civilian [SKLNBC2020-02]
In this study, a nonpathogenic model for COVID-19 research was constructed using phage display technology. The model successfully expressed the nucleocapsid protein of SARS-CoV-2 and showed potential as a standard for qPCR quantification and antibody affinity. Additionally, the model was used to develop a system for the classification and identification of samples using ATR-FTIR.
With the outbreak and spread of COVID-19, a deep investigation of SARS-CoV-2 is urgent. Direct usage of this virus for scientific research could provide reliable results and authenticity. However, it is strictly constrained and unrealistic due to its high pathogenicity and infectiousness. Considering its biosafety, different systems and technologies have been employed in immunology and biomedical studies. In this study, phage display technology was used to construct a nonpathogenic model for COVID-19 research. The nucleocapsid protein of SARS-CoV-2 was fused with the M13 phage capsid p3 protein and expressed on the M13 phages. After validation of its successful expression, its potential as the standard for qPCR quantification and affinity with antibodies were confirmed, which may show the possibility of using this nonpathogenic bacteriophage to replace the pathogenic virus in scientific research concerning SARS-CoV-2. In addition, the model was used to develop a system for the classification and identification of different samples using ATR-FTIR, which may provide an idea for the development and evaluation of virus monitoring equipment in the future.
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