SARS CoV-2 IgG S1

Ref. 3D-ANT-760

Product Information

• Name: SARS CoV-2 IgG S1
• Synonyms: Recombinant Anti Human SARS CoV-2 IgG Spike S1, Monoclonal
• Brand: Biosynth
• Description: CoV-2 IgG S1 antibody binds to both SARS-CoV and SARS-CoV-2 (COVID-19) with high affinity at amino acids 318-510 in the S1 domain of the Spike protein and can be used in ELISA assays. SARS Coronavirus is an enveloped virus containing three outer structural proteins, namely the membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a cellular receptor and mediates membrane fusion to allow viral entry into susceptible target cells. Accordingly, S-protein plays an important role in virus infection cycle and is the primary target of neutralizing antibodies. It has recently been shown that SARS is caused by a human coronavirus. Human coronaviruses are the major cause of upper respiratory tract illness in humans, such as the common cold. Coronaviruses are positive-stranded RNA viruses, featuring the largest viral RNA genomes known to date (27-31 kb). The first step in coronavirus infection is binding of the viral spike protein, a 139-kDa protein, to certain receptors on host cells. The spike protein is the main surface antigen of the coronavirus. The most prominent protein in the culture supernatants infected with SARS virus is a 46 kDa nucleocapsid protein. This suggests that the nucleocapsid protein is a major immunogen that may be useful for early diagnostics.Recombinant Anti Human SARS CoV-2 IgG1 Kappa Spike S1 is a recombinant monoclonal antibody derived from HEL293 cells, which recognizes the SARS-CoV and SARS-CoV-2 Spike glycoprotein. CoV-2 IgG S1 Antibody binds to both SARS-CoV and SARS-CoV-2 with high affinity at amino acids 318-510 (RBD, Receptor Binding Domain) in the S1 subunit of the Spike protein. The native monoclonal antibody was generated by sequencing peripheral blood lymphocytes of a patient exposed to the SARS-CoV. The ELISA Plate was coated with the target proteins at 5 µg/ml. Primary antibodies were titrated on a 3-fold serial dilution starting at 125 ng/ml, CoV-2 IgG S1 antibody recognises SARS-CoV-2 spike protein subunit 1 (aa 1-674), or 41.6 ng/ml CoV-2 IgG S1 antibody recognised spike protein from SARS-CoV (subunit 1, aa 1-666) and SARS-CoV-2 (subunit 1, aa 1-674). Secondary antibody anti-human IgG conjugated to HRP used in the assay, at 1:4000 concentration. This product was purified through Protein A affinity and avaiable in the formulation: 1mg/ml in PBS and 0.02% Proclin 300F.

Chemical properties

• Purity: Min. 95%