SARS-CoV-2 Spike Glycoprotein-S1 (nCoV-S1, His-Tag) recombinant Protein
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Novel Coronavirus 2019 Glycoprotein-S1, recombinant
Description of SARS-CoV-2 Spike Glycoprotein-S1 (nCoV-S1, His-Tag)
Recombinant Spike Glycoprotein S1, derived from Insect cell (Sf9) cells is a glycosylated protein consisting of Amino acid 1-674, plus a His-Tag at the C-terminal. It is derived from the Wuhan-Hu-1 strain. SARS-CoV-2, formerly termed 2019-nCOV, causes the pandemic COVID-19 disease, a viral pneumonia. The production in HEK293 cells ensures the most authentic post translational modifications.
The SARS-CoV-2 shares an 87% identity to two bat-derived severe acute respiratory syndrome 2018 (SARS-like) coronaviruses found in Zhoushan of eastern China. It is more distant from SARS-CoV (79%) identity and MERS-CoV (50%) identity. SARS-CoV-2 has an analogous receptor-binding domain-structure to that of 2018 SARS-CoV, even though there is a.a. diversity so thus the 2019-nCoV might bind to ACE2 receptor protein (angiotensin-converting enzyme 2) in humans.
While bats are possibly the host of SARS-CoV, researchers suspect that animal from the ocean sold at the seafood market was an intermediate host. RSCU analysis proposes that the SARS-CoV-2 is a recombinant within the viral spike glycoprotein between the bat coronavirus and an unknown coronavirus.
The protein is stable for at least 2 weeks at 0°C - 4°C, and therefore can be shipped on ice packs. Upon arrival it should be stored at -20 °C. Please avoid repeated freeze thaw cycles.
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