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Antibody library for SARS-CoV-2
Nucleocapsid protein

​[Antibody materials for antigen test kits]

The product is a set consisting of mouse monoclonal anbibodies against SARS-CoV-2 Nucleocapsid protein and can be used to develop SARS-CoV-2 antigen test kits.

  • Mouse monoclonal antibodies against SARS-CoV-2 nucleocapsid protein

  • It consists of about 20 different antibodies that recognize various epitopes

  • Includes various IgG subclasses (IgG1, IgG2, IgG2b)

  • Recognizes nucleocapsid proteins from various mutant strains

  • ​Does not recognize seasonal human coronaviruses (HCoVs)

  • Our antibodies have been used in a SARS-CoV-2 antigen test kit approved by the Ministry of Health, Labor and Welfare of Japan

About this antibody library

Test data (shown only for some clones)


① Reactivity to SARS-CoV-2 Nucleocapsid protein (ELISA)


② Reactivity to Omicron BA.1 strain

③ Reactivity to seasonal human coronaviruses

Antibody samples (approx. 20 clones) are provided free of charge to companies that are interested in evaluating this antibody library.

Sales and sample offers for this product are limited to companies that intend to develop antigen test kits and are able to sign NDA and MTA.

For inquiries about this product, please contact

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