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SARS-CoV-2 Spike S1 Protein, His Tag (BA.2.75/Omicron)

SARS-CoV-2 Spike S1, His Tag (BA.2.75/Omicron) (S1N-C52Hz) is expressed from human 293 cells (HEK293) . It contains AA Val 16 - Arg 685 (Accession # QHD43416.1 (T19I, LPP24-26del, A27S, G142D, K147E, W152R, F157L, I210V, V213G, G257S, G339H, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, G446S, N460K, S477N, T478K, E484A, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H) ) . The spike mutations are identified on the SARS-CoV-2 Omicron variant (Pango lineage: BA.2.75) .

Product Specifications

Background

It's been reported that Coronavirus 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.

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 76.8 kDa. The protein migrates as 110-130 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

QHD43416.1 (T19I, LPP24-26del, A27S, G142D, K147E, W152R, F157L, I210V, V213G, G257S, G339H, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, G446S, N460K, S477N, T478K, E484A, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H)

Expression Region

Val 16 - Arg 685

Host

HEK293

Target

Spike S1

Conjugation

Unconjugated

Tag

C-10xHis

Source

SARS-CoV-2

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.

Endotoxin

1.0 EU per μg

Purity

95%

Bioactivity

Immobilized SARS-CoV-2 Spike S1, His Tag (BA.2.75/Omicron) (Cat. No. S1N-C52Hz) at 2 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 Spike RBD Broadly Neutralizing Antibody, Human IgG1 (Cat. No. SPD-M265) with a linear range of 0.1-2 ng/mL (QC tested).

Format

Powder

Buffer

PBS, 0.2 M Arginine, pH7.4

Additives

Trehalose

Molecular Weight

76.8 kDa

Shipping Conditions

RT

Storage Conditions

-20°C

Package Size

100ug*1

Product Datasheet

Https://www.acrobiosystems.com/static/main/products/pdf/ds/S1N-C52Hz.pdf

Species

SARS-CoV-2

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