The SARS-CoV-2 spike or fusion protein is a trimer: a group of three units, each consisting of a receptor-binding subunit, S1, and a subunit responsible for fusion, S2. The three S1 and S2 ...
Image Credit: ACROBiosystems Anti-SARS-CoV-2 antibody IgG titer serologic assay kit (Spike Trimer) (RAS-T025 ... Immobilized SARS-CoV-2 Spike Protein at 2 μg/mL (100 μL/well) can bind monoclonal ...