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My Cart> Cell Biology > Cell Detection > Cell Growth Factor > S Protein CTD (Mammalian, N-8His, Flag)
Purity：≥95% as determined by reducing SDS-PAGE.
Storage：Reconstituted protein solution should be stored at ≤ -20°C.Stable for at least 24 months when stored as instructed.
Appearance：Supplied as a 0.2 μm filtered solution of PBS, PH7.4.
Qty：
Size：
| Appearance | Supplied as a 0.2 μm filtered solution of PBS, PH7.4. |
| Purity | ≥95% as determined by reducing SDS-PAGE. |
| Storage | Reconstituted protein solution should be stored at ≤ -20°C.Stable for at least 24 months when stored as instructed. |
| Transport Condition | The product is shipped on dry ice pack. |
| Background | Protein S (PROS1) is glycoprotein and expressed in many cell types supporting its reported involvement in multiple biological processes that include coagulation，apoptosis，cancer development and progression，and the innate immune response.Known receptors bind S1 are ACE2，angiotensin-converting enzyme 2，DPP4，CEACAM etc.The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process.Most notable is severe acute respiratory syndrome (SARS).The severe acute respiratory syndrome-coronavirus (SARS-CoV) spike (S) glycoprotein alone can mediate the membrane fusion required for virus entry and cell fusion.It is also a major immunogen and a target for entry inhibitors.It's been reported that 2019-nCoV 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. |
| Unit | Piece |
| Specification | 50ug 500ug 1mg |
Cell growth factor
Remark：These protocols are for reference only. Solarbio does not independently validate these methods.
Note：
1. The products are all for scientific research use only. Do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Do not store them in ordinary residential areas.
2. For your safety and health, please wear laboratory clothes, disposable gloves and masks.
3. The experimental results may be affected by many factors, after-sale service is limited to the product itself and does not involve other compensation.
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