| Anti-COVID-19 S protein-IgA

Coronaviruses exhibit coronavirus spike protein, also known as the S protein, on their surfaces; S is a class I fusion protein and is responsible for mediating viral entry as the first step in viral infection.It is highly antigenic and accounts for most antibodies produced by the immune system in response to infection.In virology, a spike protein or peplomer protein is a protein that forms a large structure known as a spike or peplomer projecting from the surface of an enveloped virus. The proteins are usually glycoproteins that form dimers or trimers.
 

| Typical data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, wash technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data are provided below for reference only.

| Repeatability

Intra-assay Precision (Precision within an assay)：CV% < 10%; Inter-assay Precision (Precision between assays)：CV% < 10%
 

| Recovery

The recovery of Mouse Anti-COVID-19 S protein-IgA spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
 

| Linearity

Samples were spiked with high concentrations of Mouse Anti-COVID-19 S protein-IgA and diluted with Universal Diluent to produce samples with values within the range of the assay.