{"product_id":"spike-trimer-s1-s2-b-1-351-beta-variant-delta-242-244-sars-cov-2-recombinant-bhp18201036","title":"Spike Trimer (S1+S2) (B.1.351, Beta Variant, Δ242-244) (SARS-CoV-2) Recombinant","description":"\u003cstyle\u003e.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}.bhp-desc p{margin:0 0 12px}.bhp-desc .bhp-spec-table{width:100%;border-collapse:collapse;margin:12px 0 18px}.bhp-desc .bhp-spec-table th{width:36%;text-align:left;padding:8px 12px;background:#e8f0fb;color:#003366;font-weight:600;vertical-align:top;border:1px solid #ccd9f0}.bhp-desc .bhp-spec-table td{padding:8px 12px;vertical-align:top;border:1px solid #ccd9f0}.bhp-desc .bhp-qc-badge{display:inline-block;background:#e6f4ea;color:#1a7a3c;border:1px solid #a8d5b5;border-radius:4px;padding:6px 14px;font-size:14px;font-weight:600;margin-right:8px}.bhp-desc .bhp-warning-box{background:#fff8e6;border-left:4px solid #e6a817;padding:10px 14px;margin:10px 0 14px;border-radius:0 4px 4px 0}.bhp-desc .bhp-cat-pill{display:inline-block;background:#003366;color:#fff;border-radius:20px;padding:3px 12px;font-size:13px;margin-bottom:10px}\u003c\/style\u003e\n\u003cdiv class=\"bhp-desc\"\u003e\n\u003ch2\u003eScientific Background\u003c\/h2\u003e\n\u003cp\u003eRecombinant SARS-CoV-2 Spike protein in its homotrimeric form, containing S1+S2 subunits and encompassing amino acids 16-1213. This protein corresponds to SARS-CoV-2 Variant B.1.351, also known as variant Beta originally discovered in South Africa, and contains the nine known mutations listed below, in addition to deletion 242-244. It also contains mutations 682RRAR685\u0026gt;A, K986P and V987P. The construct has a C-terminal His-tag (6xHis). Note that the expected MW of the S1+S2 monomer is 137kDa but migrates at a higher MW in SDS-PAGE due to glycosylation. The recombinant protein was affinity puri\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cspan class=\"bhp-cat-pill\"\u003eMammalian (HEK293) Expression\u003c\/span\u003e\n\u003cp\u003eRecombinant Spike Trimer (S1+S2) (B.1.351 SARS-CoV-2 protein is produced using a validated Mammalian (HEK293) expression system and supplied in aqueous buffer solution. Suitable for enzyme kinetics, inhibitor screening, binding assays, structural studies, and related biochemical research applications.\u003c\/p\u003e\n\n\u003ch2\u003eProtein Specifications\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n  \u003ctr\u003e\n\u003cth\u003eUniProt ID\u003c\/th\u003e\n\u003ctd\u003eP0DTC2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eExpression System\u003c\/th\u003e\n\u003ctd\u003eMammalian (HEK293)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eAmino Acids \/ Region\u003c\/th\u003e\n\u003ctd\u003e16-1213\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eAffinity Tag\u003c\/th\u003e\n\u003ctd\u003eC-terminal His-tag\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMolecular Weight\u003c\/th\u003e\n\u003ctd\u003e137 kDa + glycans\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003ePurity\u003c\/th\u003e\n\u003ctd\u003e≥90%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFormulation\u003c\/th\u003e\n\u003ctd\u003e8 mM phosphate, pH 7.4, 110 mM NaCl, 2.2 mM KCl, 20% glycerol\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eAt least 6 months at -80°C.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBiosafety Level\u003c\/th\u003e\n\u003ctd\u003eNot applicable (BSL-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"bhp-qc-badge\"\u003e✓ Purity Verified\u003c\/div\u003e\n\n\u003ch2\u003eSafety \u0026amp; Handling\u003c\/h2\u003e\n\u003cdiv class=\"bhp-warning-box\"\u003e\u003cp\u003eAvoid freeze\/thaw cycles.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BPS Bioscience","offers":[{"title":"100 ug","offer_id":53326177829229,"sku":"101091","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/101091_gel.png?v=1778704125","url":"https:\/\/www.ebiohippo.com\/products\/spike-trimer-s1-s2-b-1-351-beta-variant-delta-242-244-sars-cov-2-recombinant-bhp18201036","provider":"BioHippo","version":"1.0","type":"link"}