SARS-CoV-2 Spike Protein (BA.4 - Omicron) (His tag)
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- Target See all SARS-CoV-2 Spike Proteins
- SARS-CoV-2 Spike
- Protein Type
- Recombinant
- Protein Characteristics
- BA.4 - Omicron
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Origin
- SARS Coronavirus-2 (SARS-CoV-2), SARS CoV-2 Omicron
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Source
- HEK-293 Cells
- Purification tag / Conjugate
- This SARS-CoV-2 Spike protein is labelled with His tag.
- Purpose
- SARS-CoV-2 Spike Trimer, His Tag (BA.4/Omicron) (MALS verified)
- Sequence
- Val 16 - Pro 1213
- Characteristics
- SARS-CoV-2 Spike Trimer, His Tag (BA.4/Omicron) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213 (Accession # QHD43416.1 (T19I, LPP24-26del, A27S, HV69-70del, G142D, V213G, G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H, D614G, H655Y, N658S, N679K, P681H, N764K, D796Y, Q954H, N969K, R683A, R685A, F817P, A892P, A899P, A942P, K986P, V987P). The spike mutations are identified on the SARS-CoV-2 Omicron variant (Pango lineage: BA.4, GISAID clade: GRA). The recombinant protein is expressed from human 293 cells (HEK293) with T4 fibritin trimerization motif and a polyhistidine tag at the C-terminus. Proline substitutions (F817P, A892P, A899P, A942P, K986P, V987P) and alanine substitutions (R683A and R685A) are introduced to stabilize the trimeric prefusion state of SARS-CoV-2 S protein and abolish the furin cleavage site, respectively.
- Purity
- >95 % as determined by SDS-PAGE.
- Endotoxin Level
- Less than 1.0 EU per μg by the LAL method.
- Grade
- MALS verified
- Top Product
- Discover our top product SARS-CoV-2 Spike Protein
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- Application Notes
- This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 137.7 kDa. The protein migrates as kDa under reducing (R) condition due to glycosylation.
- Restrictions
- For Research Use only
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- Format
- Lyophilized
- Buffer
- PBS
- Storage
- -20 °C
- Storage Comment
- -20°C
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- Target
- SARS-CoV-2 Spike
- Abstract
- SARS-CoV-2 Spike Products
- Synonyms
- E2 Protein, E2 glycoprotein precursor Protein, Surface Glycoprotein Protein, S Protein
- Background
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Synonyms: Spike,S protein,Spike glycoprotein,S glycoprotein,
It's been reported that SARS-CoV-2 can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. - Molecular Weight
- 137.7 kDa
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