膜杰作
Star Staining
抗体来源（Source）
Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) (S1N-VM226) is a chimeric monoclonal antibody recombinantly expressed from HEK293 cells, which combines the variable region of a mouse monoclonal antibody with human IgG1 constant domain. The mouse monoclonal antibody was obtained from a mouse immunized with recombinant SARS-CoV-2 Spike S1 Protein. As verified in competitive ELISA-based and pseudovirus-based neutralization assay, this chimeric monoclonal can potently neutralize all SARS-CoV-2 Variants of Concern (VOCs), including Alpha (B.1.1.7), Beta (B.1.351), Gamma (P.1) and Delta (B.1.617.2).
克隆号（Clone）
AM122
亚型（Isotype）
Human IgG1 | Human Kappa
偶联（Conjugate）
Biotin
抗体类型（Antibody Type）
Recombinant Monoclonal
种属反应性（Reactivity）
Virus
特异性（Specificity）
This product is a specific antibody against SARS-CoV-2 Spike protein RBD domain. No cross-reactivity is detected with Spike RBD domain of other coronaviruses, including SARS-CoV, MERS-CoV, HCoV-229E, HCoV-NL63, HCoV-OC43 and HCoV-HKU1.
应用（Application）
| Application | Recommended Usage |
| ELISA | 1.6-200 ng/mL |
纯度（Purity）
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
纯化（Purification）
Protein A purified/ Protein G purified
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
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:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) (Cat. No. S1N-VM226) is more than 90% and the molecular weight of this protein is around 145-160 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized SARS-CoV-2 Spike RBD, His Tag (Cat. No. SPD-C52H3) at 2 μg/mL (100 μL/well) can bind Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) (Cat. No. S1N-VM226) with a linear range of 0.2-13 ng/mL (QC tested).
Protocol
Immobilized SARS-CoV-2 Spike Protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) at 2 μg/mL (100 μL/well) can bind Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) (Cat. No. S1N-VM226) with a linear range of 0.2-13 ng/mL (Routinely tested)
Protocol
活性（Bioactivity）-BLI
Loaded Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Human IgG1 (AM122) (Cat. No. S1N-VM226) on AHC Biosensor, can bind SARS-CoV-2 Spike RBD, His Tag (Cat. No. SPD-C52H3) with an affinity constant of 1.97 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Biotinylated Anti-SARS-CoV-2 Spike RBD Neutralizing Antibody, Chimeric mAb, Human IgG1 (Cat. No. S1N-VM226) on AHC Biosensor, can bind SARS-CoV-2 Spike Protein, His Tag, Super stable trimer (Cat. No. SPN-C52H9) with an affinity constant of 2.47 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
背景（Background）
It's been reported that Coronavirus can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.
