SARS-CoV-2 Spike Trimer Protein, His Tag (BA.2.3.20/Omicron) (MALS verified)

DESCRIPTION

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.

DETAILS

Tag: C-10×His
Host: HEK293
Size: 500ug
Buffer: PBS
Format: Powder
Purity: 95%
Source: SARS-CoV-2 Spike Trimer, His Tag (BA.2.3.20/Omicron) (SPN-C522n) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213 (Accession # QHD43416.1 (T19I, LPP24-26del, A27S, G142D, M153T, N164K, V213G, H245N, G257D, G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, K444R, N450D, L452M, N460K, S477N, T478K, E484R, Q498R, N501Y, Y505H, D614G, H655Y, 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.2.3.20). 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.
Storage: -20℃
Category: Viral Proteins
Molecule: Spike protein
Accession: QHD43416.1 (T19I, LPP24-26del, A27S, G142D, M153T, N164K, V213G, H245N, G257D, G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, K444R, N450D, L452M, N460K, S477N, T478K, E484R, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H, N764K, D796Y, Q954H, N969K, R683A, R685A, F817P, A892P, A899P, A942P, K986P, V987P)
Conjugate: Unconjugated
Stability: ● -20°C to -70°C for 12 months in lyophilized state; ● -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Exp Region: Val 16 - Pro 1213
Package Size: 500ug*1
Characteristics: This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 138.2 kDa. The protein migrates as 165-180 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin Level: 1.0 EU per μg
Molecular Weight: 138.2 kDa
Shipping Condition: RT
Species Reactivity: SARS-CoV-2
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