Recombinant COVID-19 Spike S1 NTD protein(Met1-Ser305), His&Avi-tagged

• Cat.No.: Spike-1215V
• Product Overview: Recombinant COVID-19 Spike S1 NTD (YP_009724390.1) (Met1-Ser305) was expressed in HEK293 with a C-terminal polyhistidine tag followed by an AVI tag.

Specification

• Source: HEK293
• Species: COVID-19
• Tag: C-His&Avi
• Protein length: Met1-Ser305
• Form: Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
• Molecular Mass: The recombinant SARS-CoV-2 (2019-nCoV) Spike S1 NTD consists of 314 amino acids and predicts a molecular mass of 35.89 kDa.
• Endotoxin: < 1.0 EU per 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°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.

Gene Information

• Gene Name: S surface glycoprotein [ Severe acute respiratory syndrome coronavirus 2 ]
• Official Symbol: Spike
• Synonyms: Spike; S1 protein; Spike glycoprotein Subunit1; S glycoprotein Subunit1; Spike protein S1
• Gene ID: 43740568
• Protein Refseq: YP_009724390.1
• UniProt ID: P0DTC2