Description：Recombinant COVID-19 Nucleocapsid Protein (Omicron, B.1.1.529) is produced by our E.coli expression system and the target gene encoding Met1-Ala419 (P13L, E31del, R32del, S33del, R203K, G204R) is expressed with a 6His tag at the N-terminus. The mutations were identified in the COVID-19 variant (known as Omicron/B.1.1.529 lineage) which emerged in South Africa.Form：Liquid in a 0.2 μm filtered solution of 20 mM Tris-HCl, 300 mM NaCI, 1 mM EDTA, pH8.0.Alternative Names：SARS-CoV-2 coronavirus NP Protein; SARS-CoV-2 np Protein; SARS-CoV-2 novel coronavirus Nucleoprotein Protein Entrez Gene (Human)： 43740575; SwissProt (Human)： P0DTC9; Purity：Greater than 95% as determined by reducing SDS-PAGE.Directions for Use：Please minimize freeze-thaw cycles.Quality Control：Endotoxin: Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.Storage/Stability：Store it at -20°C to -80°C for one year. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

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  Greater than 95% as determined by reducing SDS-PAGE.