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AM359b
Human IgG4 | Human Kappa
Unconjugated
Recombinant Monoclonal
Virus
This product is a specific antibody against SARS-CoV-2 Spike protein RBD domain. Cross-reactivity with Spike protein RBD domain of other coronaviruses, including SARS-CoV, MERS-CoV, HCoV-229E, HCoV-NL63, HCoV-OC43 and HCoV-HKU1 has not been tested.
| Application | Recommended Usage |
| ELISA | 0.2-100 ng/mL |
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Protein A purified/ Protein G purified
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat. No. SPD-M402a) is more than 90% and the molecular weight of this protein is around 130-160 kDa verified by SEC-MALS.
Immobilized SARS-CoV-2 Spike Trimer, His Tag (B.1.1.529/Omicron) (Cat. No. SPN-C52Hz) at 2μg/mL (100μL/well) can bind Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat. No. SPD-M402a) with a linear range of 0.2-6 ng/mL (QC tested).
Immobilized SARS-CoV-2 Spike RBD, His Tag (B.1.1.529/Omicron) (Cat. No. SPD-C522e) at 2μg/mL (100μL/well) can bind Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat. No. SPD-M402a) with a linear range of 0.1-3 ng/mL (Routinely tested).
Immobilized SARS-CoV-2 Spike protein WT (Cat. No. SPN-C52H9), Alpha (Cat. No. SPN-C52H6), Beta (Cat. No. SPN-C52Hk),Gamma (Cat. No. SPN-C52Hg), Delta (Cat. No. SPN-C52He) and Omicron (Cat. SPN-C52Hz) can bind Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat. No. SPD-M402a) with a linear range of 0.20-6.25 ng/mL (Routinely tested).
Immobilized SARS-CoV-2 Spike RBD WT (Cat. No. SPD-C52H1), Delta (Cat. No. SPD-C52Hh) and Omicron (Cat. SPD-C522e) can bind Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat. No. SPD-M402a) with a linear range of 0.20-6.25 ng/mL (Routinely tested).
Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG4 (AM359b) (Cat.No. SPD-M402a) neutralizes SARS-CoV-2 Spike Trimer by inhibiting Spike: ACE2 interaction. The Wild type (WT) Spike Trimer or Alpha, Delta, B.1.1.529/Omicron, BA.2/Omicron, BA.3/Omicron mutant-coated plate is incubated with the Biotinylated Human ACE2 / ACEH Protein and treated with the neutralizing antibody at increasing concentration . Percent inhibition is calculated based on the OD value.
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