Active Recombinant SARS-CoV-2 Spike S1+S2 ECD (E154K, L452R, E484Q, D614G, P681R, E1072K, K1073R) Protein, His-tagged

• Cat.No.: S-409S
• Product Overview: Recombinant SARS-CoV-2 Spike S1+S2 (YP_009724390.1, with mutations E154K, L452R, E484Q, D614G, P681R, E1072K, K1073R) (Met1-Pro1213) was expressed in insect cell with a polyhistidine tag at the C-terminus. The mutations were identified in the SARS-CoV-2 variant (known as B.1.617) which emerged in the India

Specification

• Species: SARS-CoV-2
• Source: Insect Cells
• Tag: His
• Protein Length: 1-1213
• Predicted N Terminal: Val 16
• Bio-activity: Immobilized ACE2 Protein, Human, Recombinant (mFc Tag) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 Spike S1+S2 (E154K, L452R, E484Q, D614G, P681R, E1072K, K1073R) Protein (ECD, His Tag), the EC50 of SARS-CoV-2 Spike S1+S2 (E154K, L452R, E484Q, D614G, P681R, E1072K, K1073R) Protein (ECD, His Tag) is 200-900 ng/mL.
• Molecular Mass: The recombinant SARS-CoV-2 Spike S1+S2 consists of 1209 amino acids and predicts a molecular mass of 134.5 kDa.
• Endotoxin: < 1.0 EU/μg protein as determined by the LAL method.
• Purity: > 90 % as determined by SDS-PAGE.
• Storage: Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
  Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Storage Buffer: Lyophilized from sterile 20 mM Tris, 300 mM NaCl, 10 % glycerol, pH 8.5.
  Please contact us for any concerns or special requirements.
  Normally 5 % - 8 % trehalose, mannitol and 0.01 % Tween80 are added as protectants before lyophilization.

Gene Information

• Gene Name: S surface glycoprotein [ Severe acute respiratory syndrome coronavirus 2 ]
• Official Symbol: S
• Synonyms: S; surface glycoprotein; spike glycoprotein; surface glycoprotein; structural protein; spike protein
• Gene ID: 43740568
• mRNA Refseq: MN908947
• Protein Refseq: YP_009724390