Recombinant 2019-nCoV Guanine-N7_meth Protein (His Tag)
SKU: PKSR030473-50
Recombinant 2019-nCoV Guanine-N7_meth Protein (His Tag)
| SKU # | PKSR030473 |
| Expression Host | E.coli |
Description
| Synonyms | Guanine-N7 methyltransferase, SARS-CoV 2 ExoN, SARS-CoV 2 nsp14 |
| Species | SARS-CoV-2 |
| Expression Host | E.coli |
| Sequence | Ala1-Gln527 |
| Accession | YP_009725309.1 |
| Calculated Molecular Weight | 62.9 kDa |
| Observed Molecular Weight | 60 kDa |
| Tag | N-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 | Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles. |
| Shipping | This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C. |
| Formulation | Supplied as a 0.2 μm filtered solution of 20mM PB, 100mM NaCl, 2mM DTT, 20% Glycerol, 0.1% TritonX-100, pH 6.0. |
| Reconstitution | Not Applicable |
Background
The nonstructural protein (nsp) 14 of SARS-CoV 2 was identified as a cap (guanine-N7)-methyltransferase (N7-MTase). Nsp14 of coronaviruses two different activities: an exoribonuclease activity acting on both ssRNA and dsRNA in a 3' to 5' direction and a N7-guanine methyltransferase activity. It may be involved in the proof-reading ability during the viral RNA replication and transcription. GTP, dGTP as well as cap analogs GpppG, GpppA and m7GpppG could be methylated by nsp14.positive-stranded RNA genome of the coronaviruses is translated from ORF1 to yield polyproteins that are proteolytically processed into intermediate and mature nonstructural proteins (nsps). SARS-CoV 2 polyproteins incorporate 16 protein domains (nsps). The putative non-structural protein 2 (nsp2) of SARS-CoV plays an important role in viral transcription and replication, and is an attractive target for anti-SARS drug development.