{"product_id":"recombinant-sars-cov-2-spike-rbd-protein-rp01258","title":"Recombinant SARS-CoV-2 Spike RBD Protein - RP01258","description":"\u003cp\u003eRecombinant SARS-CoV-2 Spike RBD Protein\u003c\/p\u003e\n\n\u003cp\u003eSizes: 50ug, 100ug\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Number: RP01258-50, RP01258-100\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eDescription: Recombinant SARS-CoV-2(2019-nCoV) Spike RBD-His Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Arg319-Phe541) of SARS-COV-2(2019-nCoV) Spike RBD-His (Accession #YP_009724390.1) fused with a 6×His tag at the C-terminus.\u003c\/p\u003e\n\n\u003cp\u003eAlternate Names: Envelope, SARS-CoV-2 Spike RBD (N501Y), Spike, Spike ECD, Spike RBD, Spike S1, Spike S2, Spike S2 ECD, S1-RBD protein, NCP-CoV RBD Protein, novel coronavirus RBD Protein, 2019-nCoV RBD Protein, S glycoprotein Subunit1 RBD Protein\u003c\/p\u003e\n\n\u003cp\u003eGeneID: 43740568\u003c\/p\u003e\n\n\u003cp\u003eSpecies: SARS-CoV-2\u003c\/p\u003e\n\n\u003cp\u003ePurity: ≥ 95 % as determined by SDS-PAGE; ≥ 95 % as determined by HPLC.\u003c\/p\u003e\n\n\u003cp\u003eStorage: Store at -20℃. Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.\u003c\/p\u003e\n\n\u003cp\u003eBio-Activity: 1.Measured by its binding ability in a functional ELISA.Immobilized SARS-CoV-2 Spike RBD (Catalog: RP01258) at 2 μg\/mL (100 μL\/well) can bind Human ACE-2 (Catalog: RP01275) with a linear range of 0.001-2.96 ng\/mL.|2.Immobilized human ACE2 on COOH Chip, can bind SARS-COV-2 Spike RBD Protein with an affinity constant of 35.3 nM as determined in a SPR assay (Nicoya OpenSPR).|3.Measured by its binding ability in a functional ELISA.Immobilized SARS-CoV-2 Spike RBD (Catalog: RP01258) at 2 μg\/mL (100 μL\/well) can bind Human ACE-2 (Catalog: RP01275) with a linear range of 0.001-1.69 ng\/mL.\u003c\/p\u003e\n\n\u003cp\u003eSource: HEK293 cells\u003c\/p\u003e\n\n\u003cp\u003eTag: C-His\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. or Supplied as a 0.22 μm filtered solution in PBS, pH 7.4. Contact us for customized product form or formulation.\u003c\/p\u003e\n\n\u003cp\u003eAntigen Sequence: RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: \u0026lt; 0.1 EU\/μg of the protein by LAL method.\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"ABclonal","offers":[{"title":"50ug","offer_id":45198360346803,"sku":"RP01258-50","price":252.0,"currency_code":"CAD","in_stock":true},{"title":"100ug","offer_id":45198360379571,"sku":"RP01258-100","price":420.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/files\/download_746d56e8-374c-4fe2-b04b-826844e19ca7.png?v=1766961159","url":"https:\/\/afsbio.com\/products\/recombinant-sars-cov-2-spike-rbd-protein-rp01258","provider":"AFSBio Inc.","version":"1.0","type":"link"}