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  • Regulatory status:RUO
  • Type:ELISA
  • Other names:Severe acute respiratory syndrome coronavirus 2 nucleocapsid, 2019 novel coronavirus nucleoprotein, SARS-CoV-2 NP, SARS-CoV-2 N protein, COVID-19
  • Species:Human
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Cat. No. Size Price

New 41A223R 96 wells
PubMed Product Details
Technical Data




Serum, Plasma, COVID-19

Sample Requirements

1 µl/well


At ambient temperature. Upon receipt, store the product at the temperature recommended below.



Intra-assay (Within-Run)

CV = 6,31%

Inter-assay (Run-to-Run)

CV = 6,68%



  • For Research Use Only. Not for diagnostic procedures.
  • The total assay time is less than 2.5 hours.
  • For the detection and qualitative measurement of IgG class antibodies against the spike protein S1 receptor-binding domain (S1RBD) of SARS-CoV-2 virus in human blood.
  • Assay format is 96 wells.
  • Components of the kit are provided ready to use or concentrated.

Research topic



Since December 2019, outbreak of SARS-CoV-2 (COVID-19) infection has become a major epidemic threat in China and brought back the attention of pathogenic coronavirus to the spotlight. Spike protein is an envelopeanchored protein that mediates the recognition and binding of SARS-CoV-2 to host cells. S1 can be further cleaved by the host protease into two subunits called S1 and S2, wherein the S1 polypeptide contain a receptor binding domain (RBD) crucial for the specific recognition and interaction with human receptor ACE2, which is the first and the most essential step for the virus infection. Human anti-SARS-CoV-2 spike protein S1 receptor-binding domain (S1RBD) IgG ELISA kit is a highly sensitive and specific ELISA kit the precision detection and quantitative measurement of titres of anti-S1RBD IgG class antibodies in human serum.

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