膜杰作
Star Staining
抗体来源（Source）
Anti-SARS-CoV-2 Spike S2 Antibody, Human IgG4 (AS86) is isolated from a SARS-CoV-2 infected patient and is recombinantly produced from CHO cells.
克隆号（Clone）
AS86
亚型（Isotype）
Human IgG4 | Human Kappa
偶联（Conjugate）
Unconjugated
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 S2 protein. Cross-reactivity with S2 protein of other coronaviruses has not been tested.
应用（Application）
| Application | Recommended Usage |
| ELISA | 0.13-30 ng/mL |
纯度（Purity）
>95% as determined by SDS-PAGE.
纯化（Purification）
Protein A purified/ Protein G purified
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH6.0 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）
Anti-SARS-CoV-2 Spike S2 Antibody, Human IgG4 (AS86) on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
活性（Bioactivity）-ELISA
Immobilized SARS-CoV-2 S2 protein, His Tag (Cat. No. S2N-C52H5) at 2 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 Spike S2 Antibody, Human IgG4 (AS86) (Cat. No. S2N-S86) with a linear range of 0.24-3.91 ng/mL (QC tested).
Protocol
背景（Background）
It's been reported that SARS-CoV-2 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.
