Active Recombinant SARS-CoV-2 (2019-nCoV) Spike S1(K417N, E484K, N501Y, D614G) Protein, His-tagged

• Cat.No.: S-449S
• Product Overview: Recombinant SARS-CoV-2 (2019-nCoV) Spike S1(K417N, E484K, N501Y, D614G)-His Recombinant Protein (YP_009724390.1) (Met1-Arg685(K417N, E484K, N501Y, D614G)) was expressed in HEK293 cell with a polyhistidine tag at the C-terminus.

Specification

• Species: SARS-CoV-2
• Source: HEK293
• Tag: His
• Protein Length: 1-685
• Predicted N Terminal: Val 16
• Bio-activity: Measured by its binding ability in a functional ELISA. Immobilized Human ACE2 (mFc tag) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 (2019-nCoV) Spike S1(K417N, E484K, N501Y, D614G)-His, the EC50 of SARS-CoV-2 (2019-nCoV) Spike S1(K417N, E484K, N501Y, D614G)-His is 15-90 ng/mL.
• Molecular Mass: The recombinant SARS-CoV-2 (2019-nCoV) Spike S1(K417N, E484K, N501Y, D614G)-His Recombinant Protein consists of 681 amino acids and predicts a molecular mass of 76.4 kDa. As a result of glycosylation, it migrates as an approximately 114.7 kDa band in SDS-PAGE under reducing conditions.
• 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 PBS, pH 7.4.
  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