Sandwich ELISA detection of recombinant Spike ECD proteins derived from different strains of SARS-CoV-2 virus (ie., wild type; B.1.1.7 alpha variant; B.1.351 beta variant; P.1 gamma variant; B1.617.2 delta variant) using SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267).

Sandwich ELISA detection of recombinant Spike ECD protein (GTX135972-pro) derived from wild-type strain of SARS-CoV-2 using SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267).

Sandwich ELISA detection of recombinant Spike RBD proteins derived from different strains of SARS-CoV-2 (ie., wild type; B.1.1.7 Alpha variant; B.1.351 Beta variant; P.1 Gamma variant; B1.617.2 Delta variant, B.1.617.1 Kappa variant; BA.1 Omicron variant; BA.2 Omicron variant; B.1.1.7 Alpha variant with E484K) using SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267).

Sandwich ELISA detection of recombinant Spike RBD proteins derived from different strains of SARS-CoV-2 (ie., wild type; BA.1 Omicron variant; BA.2 Omicron variant; BA.4 / BA.5 Omicron variant; BF.7 Omicron variant; BQ.1 Omicron variant; XBB Omicron variant) using SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267).

A. Recovery assay was determined by spiking SARS-CoV-2 spike and RBD proteins at various levels throughout the assay range in the listed samples. B. To determine linearity, the listed samples were spiked with SARS-CoV-2 spike and RBD proteins and diluted with Assay Diluent in 1:2 and 1:4. The value was assessed by comparing it to undiluted samples.

ELISA assay using lysates of 293T cells overexpressing the spike proteins from SARS-CoV-2, SARS-CoV, or MERS-CoV. The SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267) specifically detects only SARS-CoV-2 spike protein.

ELISA analysis of SARS-CoV-2 (COVID-19) Spike protein S1 subunit using SARS-CoV-2 (COVID-19) Spike RBD Protein Sandwich ELISA Kit (GTX536267).