The spike protein S1 subunit of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) attaches the virus to its
cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S1 mediates this
interaction.The S protein plays key parts in the induction of neutralizing antibodies and T-cell responses, as well as
protective immunity.
This SARS-CoV-2 Spike S1 Mutant Sampler Set contains wild type Spike S1 protein, D614G mutant, and N439K mutant
recombinant proteins expressed in CHO-K1.