SARS-CoV-2 Spike Protein (D614G, Super Stable Trimer) (His tag)

Catalog No. ABIN6953301

Product Details

Target: SARS-CoV-2 Spike

Protein Type: Recombinant

Protein Characteristics: D614G, Super Stable Trimer

Origin: SARS Coronavirus-2 (SARS-CoV-2)

Source: HEK-293 Cells

Purification tag / Conjugate: This SARS-CoV-2 Spike protein is labelled with His tag.

Application: ELISA

Purpose: SARS-CoV-2 S protein (D614G), His Tag, Super stable trimer (MALS verified)

Characteristics: SARS-CoV-2 S protein (D614G), His Tag, Super stable trimer is the ectodomain of SARS-CoV-2 S protein that contains AA Val 16 - Pro 1213 (Accession # QHD43416.1) and D614G mutation, which has become increasingly common in SARS-CoV-2 viruses from around the world . 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. > 90 % as determined by SEC-MALS.

Sterility: 0.22 μm filtered

Endotoxin Level: Less than 1.0 EU per μg by the LAL method.

Application Details

Application Notes: Optimal working dilution should be determined by the investigator.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Buffer: PBS

Storage: -20 °C,-80 °C

Storage Comment: For long term storage, the product should be stored at lyophilized state at -20°C or lower.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state
70°C for 3 months under sterile conditions after reconstitution.

Expiry Date: 12 months

Target Details

Target: SARS-CoV-2 Spike

Abstract: SARS-CoV-2 Spike Products

Synonyms: E2 Protein, E2 glycoprotein precursor Protein, Surface Glycoprotein Protein, S Protein

Target Type: Viral Protein

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.

Molecular Weight: 138.0 kDa