Recombinant SARS-CoV Nucleoprotein / NP Protein (His Tag)
SKU: PKSV030248-100
Recombinant SARS-CoV Nucleoprotein / NP Protein (His Tag)
| SKU # | PKSV030248 |
| Expression Host | Baculovirus-Insect Cells |
Description
| Synonyms | SARS, coronavirus NP Protein, coronavirus Nucleocapsid Protein, coronavirus Nucleoprotein Protein, cov np Protein, ncov NP Protein, novel coronavirus NP Protein, novel coronavirus Nucleocapsid Protein, novel coronavirus Nucleoprotein |
| Species | SARS |
| Expression Host | Baculovirus-Insect Cells |
| Sequence | Met1-Ala422 |
| Accession | NP_828858.1 |
| Calculated Molecular Weight | 47.5 kDa |
| Observed Molecular Weight | 47.1 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 80 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile 20 mM Tris, 500 mM NaCl, 10 % glycerol, pH 7.4. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
Coronaviruses are enveloped viruses with a positive-sense RNA genome and with a nucleocapsid of helical symmetry. Coronavirus nucleoproteins localize to the cytoplasm and the nucleolus, a subnuclear structure, in both virus-infected primary cells and in cells transfected with plasmids that express N protein. Coronavirus N protein is required for coronavirus RNA synthesis, and has RNA chaperone activity that may be involved in template switch. Nucleocapsid protein is a most abundant protein of coronavirus. During virion assembly, N protein binds to viral RNA and leads to formation of the helical nucleocapsid. Nucleocapsid protein is a highly immunogenic phosphoprotein also implicated in viral genome replication and in modulating cell signaling pathways. Because of the conservation of N protein sequence and its strong immunogenicity, the N protein of coronavirus is chosen as a diagnostic tool.