Recombinant SARS-CoV-2 S1 Protein (Omicron, B.1.1.529, C-10His)

Specification

• Cat#: THP-0561
• Product Name: Recombinant SARS-CoV-2 S1 Protein (Omicron, B.1.1.529, C-10His)
• Description: Recombinant SARS-CoV-2 S1 protein is generated using a Mammalian expression system. The target gene encoding Cys15-Arg685 is expressed with a C-terminal 10His tag. It contains extensive mutations including HV69-70del, G142D, N501Y, and P681H, identifying the SARS-CoV-2 Omicron variant (B.1.1.529 lineage) from South Africa.
• Molecular Weight: 76.5kDa
• Introduction: The coronavirus spike (S) glycoprotein is essential for viral attachment to host cells at the onset of infection, particularly in severe acute respiratory syndrome (SARS). The SARS-CoV S glycoprotein alone mediates membrane fusion required for viral entry and cell fusion. It acts as a major immunogen and a target for entry inhibitors. SARS-CoV-2 reportedly infects human respiratory epithelial cells via the ACE2 receptor. The S protein is a large type I transmembrane protein with S1 and S2 subunits. S1 contains the receptor-binding domain (RBD) for cell recognition, while S2 contains fusion elements. The S protein is vital for inducing neutralizing antibodies, T-cell responses, and protective immunity.
• Purity: Purity exceeds 95% as assessed by reducing SDS-PAGE (QC verified).
• Storage: Upon reconstitution, store samples at -20°C or lower. The product remains stable for a minimum of 24 months under recommended storage conditions.
• Shipping Conditions: Transported using dry ice packs. Immediate storage at the specified temperature is required upon receipt.
• Formulation: Provided as a 0.2 μm filtered solution in PBS, pH 7.4.
• Size: 50μg/500μg/1g