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Your Position: Home > Antigens for diagnostic > Spike protein > SPN-C522k
This product is still under development. Please contact us if you have interest in this product. We will accelerate the development process accordingly and reserve this product for you as request.
  • Synonym
    Spike,S protein,Spike glycoprotein,S glycoprotein
  • Source
    SARS-CoV-2 Spike Trimer, His Tag (BA.2.75/Omicron) (SPN-C522k) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213 (Accession # QHD43416.1(T19I, LPP24-26del, A27S, G142D, K147E, W152R, F157L, I210V, V213G, G257S, G339H, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, G446S, N460K, S477N, T478K, E484A, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H, N764K, D796Y, Q954H, N969K, R683A, R685A, F817P, A892P, A899P, A942P, K986P, V987P)). The spike mutations are identified on the SARS-CoV-2 Omicron variant (Pango lineage: BA.2.75). The recombinant protein is expressed from human 293 cells (HEK293) with T4 fibritin trimerization motif and a polyhistidine tag at the C-terminus. Proline substitutions (F817P, A892P, A899P, A942P, K986P, V987P) and alanine substitutions (R683A and R685A) are introduced to stabilize the trimeric prefusion state of SARS-CoV-2 S protein and abolish the furin cleavage site, respectively.
    Predicted N-terminus: Val 16
  • Molecular Characterization

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 138.0 kDa.

  • Endotoxin
  • Formulation

    Please contact us for detailed information.

    Contact us for customized product form or formulation.

  • Storage

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. For long term storage, the product is stable for up to 3 years at -70°C from date of receipt;
    2. For short term storage, the product is stable for up to 12 months at 2-8°C from date of receipt.
  • Shipping
    This product is supplied and shipped as sterile liquid solution with dry ice, please inquire the shipping cost.
  • 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.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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Drug Development Status

  • Number of Launched Drugs:1 Details
  • Number of Drugs in Clinical Trials:3 Details
  • Latest Research Phase:Approved

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