Recombinant 2019-nCoV Nucleocapsid Protein, Biotinylated (His Tag)
SKU: PKSR030512-20
Recombinant 2019-nCoV Nucleocapsid Protein, Biotinylated (His Tag)
| SKU # | PKSR030512 |
| Expression Host | Baculovirus-Insect Cells |
Description
| Synonyms | 2019-nCoV coronavirus NP Protein, 2019-nCoV novel coronavirus Nucleoprotein Protein, 2019-nCoV np Protein, NP |
| Species | SARS-CoV-2 |
| Expression Host | Baculovirus-Insect Cells |
| Sequence | Met1-Ala419(335Gly/Ala) |
| Accession | YP_009724397.2 |
| Calculated Molecular Weight | 47.1 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 85 % 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 PBS, 500 mM NaCl, pH 7.0. 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.