The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensinconverting 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.

Store in working aliquots at -20°C. Avoid freeze/thaw cycles.

• Tested Applications: E, WB
• Applications: SDS-PAGE
• Predicted Molecular Weight: Predicted: 27kD
• Observed: 36-40kD due to glycosylation
• Physical state: Lyophilized
• Buffer: 20mM PB (pH 7.4). 5 % trehalose is added as protectant before lyophilization.
• Concentration: N/A
• NCBI official symbol: N/A
• Accession #: QHD43416.1
• Protein GI: N/A
• NCBI gene ID#: N/A
• NCBI official full name: N/A
• NCBI organism: N/A
• Peptide sequence: N/A
• SWISSPROT #: N/A
• Background Reference 1: N/A
• Background Reference 2: N/A
• Background Reference 3: N/A
• Background Reference 4: N/A
• Background Reference 5: N/A
• Source: HEK293 cells
• Species: SARS-CoV-2 (COVID-19) Spike Protein
• By Source: Human Cells
• By Species: Other
• Fusion tag: His-Avi Tag
• Sequence: Arg319-Asn532
• Biology activity: N/A
• Purity: > 95% as determined by Bis-Tris PAGE
• > 95% as determined by HPLC

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