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SARS-CoV-2 Spike Protein (B.1.1.529 - Omicron, Trimer) (His tag)

Origin: SARS Coronavirus-2 (SARS-CoV-2) Host: HEK-293 Cells Recombinant > 95 % as determined by Tris-Bis PAGE
Catalog No. ABIN7274386
  • Target See all SARS-CoV-2 Spike Proteins
    SARS-CoV-2 Spike
    Protein Type
    Recombinant
    Protein Characteristics
    B.1.1.529 - Omicron, Trimer
    Origin
    • 223
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    SARS Coronavirus-2 (SARS-CoV-2)
    Source
    • 198
    • 7
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    HEK-293 Cells
    Purification tag / Conjugate
    This SARS-CoV-2 Spike protein is labelled with His tag.
    Purpose
    SARS-COV-2 Spike S (Omicron B.1.1.529) Trimer Protein
    Sequence
    Val16-Pro1213 (A67V, HV69-70del, T95I, G142D, VYY143-145del, N211del, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H, N764K, D796Y, N856K, Q954H, N969K, L981F)
    Characteristics
    Recombinant SARS-COV-2 Spike S (Omicron B.1.1.529) Trimer Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Val16-Pro1213(A67V, HV69-70del, T95I, G142D, VYY143-145del, N211del, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H, N764K, D796Y, N856K, Q954H, N969K, L981F). 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.
    Purity
    > 95 % as determined by Tris-Bis PAGE
    Sterility
    0.22 μm filtered
    Endotoxin Level
    Less than 1EU per μg by the LAL method.
    Biological Activity Comment
    Immobilized SARS-COV-2 Spike S (Omicron B.1.1.529) Trimer, His Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human ACE2, hFc Tag with the EC50 of 16.7ng/ml determined by ELISA. See testing image for detail.
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    Discover our top product SARS-CoV-2 Spike Protein
  • Restrictions
    For Research Use only
  • Format
    Lyophilized
    Reconstitution
    Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
    Buffer
    Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
    Storage
    -20 °C,-80 °C
    Storage Comment
    -20 to -80°C for 12 months as supplied from date of receipt., -80°C for 3-6 months after reconstitution., 2-8°C for 2-7 days after reconstitution., Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
    Expiry Date
    12 months
  • Target
    SARS-CoV-2 Spike
    Abstract
    SARS-CoV-2 Spike Products
    Synonyms
    E2 Protein, E2 glycoprotein precursor Protein, Surface Glycoprotein Protein, S Protein
    Target Type
    Viral Protein
    Background
    The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.
    Molecular Weight
    136.70 kDa. Due to glycosylation, the protein migrates to 140-180 kDa based on Tris-Bis PAGE result.
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