Sino Biological is the first company worldwide to offer recombinant proteins of SARS-CoV-2. Now, Sino Biological has developed a collection of antibodies and antigens for SARS-CoV-2, including recombinant antigens (the N protein, S protein, the S1 and S2 subunits of the S protein, and the RBD domain of the S proteins, Plpro protein), antibodies, antigen detection kits, coronavirus antigen array and genes.

Recently, Sino Biological developed a large collection of antibodies against different antigens of SARS-CoV-2. These antibodies can be used to detect and/or neutralize the virus in a variety of assays including ELISA, western blot, Immunofluorescent staining, Immunohistochemistry, SPR (Biacore and Octet), pseudovirus infection, and potentially in vivo animal studies.

For instance, Sino Biological launched new antibodies against SARS-CoV-2. These two mouse mAbs are SARS-CoV-2 specific, with strong neutralizing activities and no cross-reactivity with SARS-CoV, and other common coronaviruses. And Sino Biological also launched a chimeric antibody specifically recognizing the S2 domain of SARS-CoV-2.