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2317results about "SsRNA viruses positive-sense" patented technology

Human SARS-CoV-2 monoclonal antibody and preparation method and application thereof

The invention discloses a human SARS-CoV-2 monoclonal antibody. The preparation method of the human SARS-CoV-2 monoclonal antibody comprises the steps: adopting SARS-CoV Nucleocapsid recombinant protein as immunogen, immunizing BALB/c mice, performing fusion and subcloning on spleen cells and myeloma cells of mice, then performing a large amount of repeated screening and domestication of cell lines through commercialized products SARS-CoV-2 Nucleocapsid and MERS Nucleocapsid so as to obtain a hybridoma cell line capable of secreting the SARS-CoV-2-resistant N monoclonal antibody with high affinity and high specificity finally and successfully, and finally performing ascites preparation and purification so as to obtain the monoclonal antibody, wherein the amino acid sequence of the SARS-CoVNucleocapsid recombinant protein is shown in SEQ ID No. 1. The invention also discloses application of the monoclonal antibody in preparation of SARS-CoV-2 virus detection products and preparation ofdrugs for inhibiting the SARS-CoV-2 viruses. The monoclonal antibody can be used for detecting the SARS-CoV-2 in human throat swabs/pulmonary secretions and other samples by using a double-antibody sandwich method, and can be applied to diagnosis and prevention and control of SARS-CoV-2 virus infection and scientific researches of viruses and other study.
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