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SARS-COV-2 Spike S1 (Omicron B.1.1.529) Protein 3326



  • Expression: HEK293
  • Functional: Yes (ELISA)
  • Amino Acid Range: Gln14-Arg683(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)
Weight1 lbs
Dimensions9 × 5 × 2 in


express system


product tag



> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC


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

The protein has a predicted MW of 76.38 kDa. Due to glycosylation, the protein migrates to 130-145 kDa based on Tris-Bis PAGE result.

available size

100 µg, 500 µg


Less than 1EU per μg by the LAL method.

SARS-COV-2 Spike S1 (Omicron B.1.1.529) Protein 3326


ELISA with SARS-COV-2 Spike S1 (Omicron B.1.1.529) Protein
Immobilized Human ACE2, hFc Tag at 2µg/ml (100µl/Well) on the plate. Dose response curve for SARS-COV-2 Spike S1 (Omicron B.1.1.529) , His Tag with the EC50 of 0.8µg/ml determined by ELISA.
HPLC of SARS-COV-2 Spike S1 (Omicron B.1.1.529) Protein
The purity of SARS-COV-2 Spike S1 (Omicron B.1.1.529) is greater than 95% as determined by SEC-HPLC.
SDS-PAGE gel of SARS-COV-2 Spike S1 (Omicron B.1.1.529) Protein
SARS-COV-2 Spike S1 (Omicron B.1.1.529) on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.


Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.



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