Recombinant COVID-19 Spike S1 protein, hFc-Avi-tagged, Biotinylated

• Cat.No.: Spike-5745V
• Product Overview: Biotinylated Recombinant COVID-19 Spike S1 protein(QHD43416.1)(Gln14-Arg683), fused with C-terminal hFc and Avi tag, was expressed in HEK293.

Specification

• Source: HEK293
• Species: COVID-19
• Tag: C-hFc-Avi
• Protein length: Gln14-Arg683
• Conjugation/Label: Biotin
• Form: Supplied as 0.22μm filtered solution in PBS (pH 7.4).
• Bio-activity: Immobilized Biotinylated SARS-COV-2 Spike S1, hFc Tag at 2μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Human ACE2, His Tag with the EC50 of 0.09μg/ml determined by ELISA.
• Molecular Mass: The protein has a predicted MW of 102.6 kDa. Due to glycosylation, the protein migrates to 130-140 kDa based on Tris-Bis PAGE result.
• Endotoxin: Less than 1EU per μg by the LAL method.
• Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
• Storage: Valid for 12 months from date of receipt when stored at -80°C; Recommend to aliquot the protein into smaller quantities for optimal storage. Please do not 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 spike protein [ Middle East respiratory syndrome-related coronavirus ]
• Official Symbol: S
• Synonyms: Spike; S1 protein; Spike glycoprotein Subunit1; S glycoprotein Subunit1; Spike protein S1
• Gene ID: 14254594
• Protein Refseq: YP_009724390.1
• UniProt ID: P0DTC2