| Description : |
The single-positive-strand RNA genome of SARS-CoV-2, encodes four major structural proteins: spike (S), envelope (E), membrane (M) and nucleocapsid (N). The spike protein comprises an N-terminal (S1) subunit, which contains the roughly 200-residue receptor binding domain (RBD), and a C-terminal subunit (S2), which contains the fusion protein. The RBD of SARS-CoV-2 binds more tightly to the extracellular domain of angiotensin-converting enzyme 2 (ACE2) than the homologous SARS-CoV (2002) RBD. The higher affinity results from sequence changes in RBD and this has been proposed to underlie the higher transmissibility of SARS-CoV-2. The previously determined structures showed that SARS-CoV RBD contains a core structure and a receptor-binding motif (RBM) and that the RBM binds to the outer surface of the claw-like structure of ACE2. Importantly, two virus-binding hot spots on human ACE2 has been identified. A number of naturally selected RBM mutations occurred near these two virus-binding hot spots, and these residues largely determined the host range of SARS-CoV. |
| Source : |
HEK293 |
| Species : |
SARS-CoV-2 |
| Tag : |
His |
| Protein length : |
Arg319-phe541 |
| Form : |
Phosphate Buffered Saline, 5%mannital, 0.05% Tween20, pH7.4 |
| Molecular Mass : |
26.20 kDa |
| Endotoxin : |
>95% pure (SDS-PAGE). |
| Storage : |
For long term storage, the product should be stored at -20°C or lower. |
| Reconstitution : |
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents. |
