CINXE.COM

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Hamster</td> <td>I</td> <td>=</td> <td>Insect</td> </tr> <tr> <td>Av</td> <td>=</td> <td>Avian</td> <td>Ll</td> <td>=</td> <td>Llama</td> </tr> <tr> <td>Bb</td> <td>=</td> <td>Baboon</td> <td>Ma</td> <td>=</td> <td>Mammal</td> </tr> <tr> <td>Ba</td> <td>=</td> <td>Bacteria</td> <td>Mk</td> <td>=</td> <td>Monkey</td> </tr> <tr> <td>Bv</td> <td>=</td> <td>Bovine</td> <td>Mu</td> <td>=</td> <td>Mouse</td> </tr> <tr> <td>Ca</td> <td>=</td> <td>Canine</td> <td>Multi</td> <td>=</td> <td>Multi-species</td> </tr> <tr> <td>Ce</td> <td>=</td> <td>C. Elegans</td> <td>NA</td> <td>=</td> <td>Non-species specific</td> </tr> <tr> <td>Ch</td> <td>=</td> <td>Chicken</td> <td>Or</td> <td>=</td> <td>Orangutan</td> </tr> <tr> <td>ChHa</td> <td>=</td> <td>Chinese Hamster</td> <td>Pl</td> <td>=</td> <td>Plant</td> </tr> <tr> <td>Cm</td> <td>=</td> <td>Cynomolgus Monkey</td> <td>Pm</td> <td>=</td> <td>Primate</td> </tr> <tr> <td>Do</td> <td>=</td> <td>Donkey</td> <td>Po</td> <td>=</td> <td>Porcine</td> </tr> <tr> <td>Dr</td> <td>=</td> <td>Drosophilia</td> <td>Rb</td> <td>=</td> <td>Rabbit</td> </tr> <tr> <td>Ec</td> <td>=</td> <td>E. Coli</td> <td>Rt</td> <td>=</td> <td>Rat</td> </tr> <tr> <td>Eq</td> <td>=</td> <td>Equine</td> <td>RM</td> <td>=</td> <td>Rhesus Macaque</td> </tr> <tr> <td>Fe</td> <td>=</td> <td>Feline</td> <td>Sh</td> <td>=</td> <td>Sheep</td> </tr> <tr> <td>Ft</td> <td>=</td> <td>Ferret</td> <td>Vb</td> <td>=</td> <td>Vertebrate</td> </tr> <tr> <td>Fi</td> <td>=</td> <td>Fish</td> <td>Vi</td> <td>=</td> <td>Virus</td> </tr> <tr> <td>Fu</td> <td>=</td> <td>Fungi</td> <td>Xp</td> <td>=</td> <td>Xenopus</td> </tr> <tr> <td>Ge</td> <td>=</td> <td>Gerbil</td> <td>Ye</td> <td>=</td> <td>Yeast</td> </tr> <tr> <td>GP</td> <td>=</td> <td>Guinea Pig</td> <td>Ze</td> <td>=</td> <td>Zebrafish</td> </tr> <tr> <td>Gt</td> <td>=</td> <td>Goat</td> </tr> </table> <div style="text-align: center;margin-left:25px;margin-right:25px;"> <p>Note: Mouseover a species abbreviation on the product page to display the fullname.</p> </div> </div> <div class="search_type"><ul> <li class="active">Products (247)</li><a href="/fssearch?keywords=novus" rel="nofollow"><li>Full Site</li></a></ul></div><div class="search_results_framework"><div class="upper_framework"> <div class="search_pager"><div class="searchImage_backGrey" style="display:inline-block;zoom:1;width:6px;height:11px;background:url(//resources.rndsystems.com/images/search/searchSprite03-31-16.png) -18px -169px"></div> page <input type="text" value="1" class="search_pager_text" data-url="/product-type/peptides-and-proteins?applications=Bioactivity&species=SARS-CoV-2&page="> of <span class="search_total_pages">21</span> <div class="search_page forward" style="display:inline-block;zoom:1"><a href="/product-type/peptides-and-proteins?applications=Bioactivity&species=SARS-CoV-2&page=2" rel="nofollow" class="active"><div class="searchImage_forward" style="display:inline-block;zoom:1;width:6px;height:11px;background:url(//resources.rndsystems.com/images/search/searchSprite03-31-16.png) -7px -152px"></div></a></div> </div><h1 style="padding: 0; margin: 5px 0; font-size: 20px;">Peptides and Proteins</h1><div><p>Novus provides 42,000+ highly purified control peptides and proteins to ensure reliable results and reproducibility. We offer <a href="/product-type/peptides-and-proteins?applications=Bioactivity">bioactive proteins</a> suitable for an array of functional assays. Novus has both native proteins isolated from serum, cells, and tissue sources, and purified recombinant proteins. Our catalog includes lyophilized ProDots proteins that are perfect for cell culture. Many of our products are available in Animal-Free and Carrier-Free formats, ideal for <i>in vivo</i> applications. We also carry blocking peptides and proteins to use as quality controls to confirm antibody specificity. Browse our extensive catalog of products and sort by target, research application, species reactivity, rating review, and citations to find the exact product you need. Novus also offers bulk and custom protein production services to meet your research needs.</p></div><div class="alt_names_toggle">Alternate Names for Peptides and Proteins</div><div class="alt_names_drop"></div><div class="search_summary">247 Results for ""</div><div class="grpListGrid"> <div class="outdiv"><a href="/product-type/peptides-and-proteins?applications=Bioactivity&species=SARS-CoV-2&showGrid=false" class="active_link" rel="nofollow"> <div class="listView"></div> List</a></div> <div class="outdiv listgriddivider"><a href="/product-type/peptides-and-proteins?applications=Bioactivity&species=SARS-CoV-2&showGrid=true" class="notactive_link" rel="nofollow"> <div class="gridView"></div> Grid</a></div> </div></div><div id="equalize"><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv">10549-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10549-CV" data-name="Recombinant SARS-CoV-2 Spike His Protein, CF" data-position="1" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv" title="Recombinant SARS-CoV-2 Spike His Protein, CF" ><span> Recombinant SARS-CoV-2 Spike His Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="13 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv#PublicationSection"><span class="publications"></span> (13 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10549-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv">10549-CV</a> </div><div id="ss_prev0" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-0" data-cycle-prev="#ss_prev0" data-cycle-next="#ss_next0" data-cycle-caption="#image-caption-10549-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-bioactivity-2411202014818.jpg" title="R&D Systems Recombinant SARS-CoV-2 Spike (10549-CV) binds Recombinant Human ACE-2 (933-ZN) in a functional ELISA. The binding activity is approximately 4-fold greater than a top competitor鈥檚 Spike protein (full ectodomain)." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-bioactivity-2411202014818.jpg" title="R&D Systems Recombinant SARS-CoV-2 Spike (10549-CV) binds Recombinant Human ACE-2 (933-ZN) in a functional ELISA. The binding activity is approximately 4-fold greater than a top competitor鈥檚 Spike protein (full ectodomain)." alt="R&D Systems Recombinant SARS-CoV-2 Spike (10549-CV) binds Recombinant Human ACE-2 (933-ZN) in a functional ELISA. The binding activity is approximately 4-fold greater than a top competitor鈥檚 Spike protein (full ectodomain)." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10549-cv_recombinant-sars-cov-2-spike-his-active-trimer-protein-cf-sds-page-7720201442.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike His Protein (10549-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-175 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10549-cv_recombinant-sars-cov-2-spike-his-active-trimer-protein-cf-sds-page-7720201442.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike His Protein (10549-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-175 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-surface-plasmon-resonance-spr-287202091345.jpg" title="Recombinant SARS-CoV-2 Spike His Protein (Catalog # 10549-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (Catalog # 933-ZN) was measured at a concentration range between 0.37 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.720 nM." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-surface-plasmon-resonance-spr-287202091345.jpg" alt="Recombinant SARS-CoV-2 Spike His Protein (Catalog # 10549-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (Catalog # 933-ZN) was measured at a concentration range between 0.37 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.720 nM." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-sds-page-24112020141017.jpg" title="SDS-PAGE of 1 碌g of R&D Systems Recombinant SARS-CoV-2 Spike (10549-CV) or a competitor鈥檚 Spike protein were run under reducing or non-reducing conditions and visualized by silver staining. The R&D Systems Spike protein runs as a single band compared to the competition." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-sds-page-24112020141017.jpg" alt="SDS-PAGE of 1 碌g of R&D Systems Recombinant SARS-CoV-2 Spike (10549-CV) or a competitor鈥檚 Spike protein were run under reducing or non-reducing conditions and visualized by silver staining. The R&D Systems Spike protein runs as a single band compared to the competition." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-flow-cytometry-111220201602.jpg" title="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike His-tag Protein (Catalog # 10549-CV) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated anti-His Monoclonal Antibody (IC050A), which does not stain the cells in the absence of recombinant protein (B)." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10549-cv_recombinant-sars-cov-2-spike-active-trimer-his-protein-cf-flow-cytometry-111220201602.jpg" alt="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike His-tag Protein (Catalog # 10549-CV) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated anti-His Monoclonal Antibody (IC050A), which does not stain the cells in the absence of recombinant protein (B)." class="big_thumb" /> </a> </div></div><div id="ss_next0" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-0" class="cycle-circle-pager"></div><div id="image-caption-10549-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div><div class="product-attributes" style="margin-top:-10px;padding-top:0px;"><div class="field not3column"><label>&nbsp</label><div class="value"><div class="list_expand not3column options_closed" data-name="Formulations" data-wrapper-type=".formulations_wrapper" style="margin-left:0px;">Available Formulations <div class="expander option_closed"></div></div></div></div></div><div class="forcol3 option_buttons_block"><button class="options_button" data-type="formulations">Formulations</button></div><div class="formulations_wrapper" data-title="Recombinant SARS-CoV-2 Spike His Protein, CF" data-catnum="10549-CV"><table class="scf_table"> <thead> <tr> <th>Formulation</th> <th>Catalog #</th> <th>Availability</th> <th>Price</th> <th> </th> </tr> </thead> <tbody><tr class="popup_sku" data-sku="10549-CV-01M"> <td><a href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv">Carrier Free</a></td> <td><a href="/products/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv">10549-CV-01M</a></td> <td><div class="popup_stock"></div></td> <td><div class="popup_price"></div></td> <td><a href="/commerce/add-to-cart/929994"><div class="purchase_cart"></div></a></td> </tr> <tr class="scf_footer"> <td colspan="5"><div class="expander option_opened"></div></td> </tr> </tbody> </table> <div class="popup_skus" data-skus='["10549-CV-01M"]' data-rendered="false"></div></div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10549-CV","Product Name":"Recombinant SARS-CoV-2 Spike His Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Lys1211 (Arg682Ser, Arg685Ser, Lys986Pro and Val987Pro) with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"13","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-his-protein-cf_10549-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv">10569-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10569-CV" data-name="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" data-position="2" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="5 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv#PublicationSection"><span class="publications"></span> (5 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10569-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv">10569-CV</a> </div><div id="ss_prev1" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-1" data-cycle-prev="#ss_prev1" data-cycle-next="#ss_next1" data-cycle-caption="#image-caption-10569-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-binding-activity-2872020113041.jpg" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # 10569-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-binding-activity-2872020113041.jpg" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # 10569-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # 10569-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-sds-page-2372020115947.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF (Catalog # 10569-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 106-121 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-sds-page-2372020115947.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF (Catalog # 10569-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 106-121 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-surface-plasmon-resonance-spr-28920201391.jpg" title="Recombinant SARS-CoV-2 Spike S1 Subunit His tag protein (10569-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.184 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.625 nM. " class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10569-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-surface-plasmon-resonance-spr-28920201391.jpg" alt="Recombinant SARS-CoV-2 Spike S1 Subunit His tag protein (10569-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.184 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.625 nM. " class="big_thumb" /> </a> </div></div><div id="ss_next1" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-1" class="cycle-circle-pager"></div><div id="image-caption-10569-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div><div class="product-attributes" style="margin-top:-10px;padding-top:0px;"><div class="field not3column"><label>&nbsp</label><div class="value"><div class="list_expand not3column options_closed" data-name="Formulations" data-wrapper-type=".formulations_wrapper" style="margin-left:0px;">Available Formulations <div class="expander option_closed"></div></div></div></div></div><div class="forcol3 option_buttons_block"><button class="options_button" data-type="formulations">Formulations</button></div><div class="formulations_wrapper" data-title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" data-catnum="10569-CV"><table class="scf_table"> <thead> <tr> <th>Formulation</th> <th>Catalog #</th> <th>Availability</th> <th>Price</th> <th> </th> </tr> </thead> <tbody><tr class="popup_sku" data-sku="10569-CV-01M"> <td><a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv">Carrier Free</a></td> <td><a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv">10569-CV-01M</a></td> <td><div class="popup_stock"></div></td> <td><div class="popup_price"></div></td> <td><a href="/commerce/add-to-cart/929991"><div class="purchase_cart"></div></a></td> </tr> <tr class="scf_footer"> <td colspan="5"><div class="expander option_opened"></div></td> </tr> </tbody> </table> <div class="popup_skus" data-skus='["10569-CV-01M"]' data-rendered="false"></div></div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10569-CV","Product Name":"Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Pro681, with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"5","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10569-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-b16172-spike-gcn4-iz-protein-cf_10878-cv">10878-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10878-CV" data-name="Recombinant SARS-CoV-2 B.1.617.2 Spike GCN4-IZ Protein, CF" data-position="3" class="ecommerce_link" href="/products/recombinant-sars-cov-2-b16172-spike-gcn4-iz-protein-cf_10878-cv" title="Recombinant SARS-CoV-2 B.1.617.2 Spike GCN4-IZ Protein, CF" ><span> Recombinant SARS-CoV-2 B.1.617.2 Spike GCN4-IZ Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="4 Publications specific to this product" href="/products/recombinant-sars-cov-2-b16172-spike-gcn4-iz-protein-cf_10878-cv#PublicationSection"><span class="publications"></span> (4 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10878-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-b16172-spike-gcn4-iz-protein-cf_10878-cv">10878-CV</a> </div><div id="ss_prev2" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-2" data-cycle-prev="#ss_prev2" data-cycle-next="#ss_next2" data-cycle-caption="#image-caption-10878-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-binding-activity-146202110143.jpg" title="Recombinant SARS-CoV-2 Spike B.1.617.2 (GCN4-IZ) His-tag (Catalog # 10878-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-binding-activity-146202110143.jpg" title="Recombinant SARS-CoV-2 Spike B.1.617.2 (GCN4-IZ) His-tag (Catalog # 10878-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 Spike B.1.617.2 (GCN4-IZ) His-tag (Catalog # 10878-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-sds-page-176202117479.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 B.1.617.2 Spike His-tag Protein (Catalog # 10878-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-170 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-sds-page-176202117479.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 B.1.617.2 Spike His-tag Protein (Catalog # 10878-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-170 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-surface-plasmon-resonance-spr-287202194832.jpg" title="Recombinant SARS-CoV-2 B.1.617.2 Delta variant Spike protein His-tag (Catalog #10878-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.29 nM." class="big_lightbox"> <img src="//images.novusbio.com/images2/10878-cv_recombinant-sars-cov-2-b-1-617-2-spike-gcn4-iz-protein-cf-surface-plasmon-resonance-spr-287202194832.jpg" alt="Recombinant SARS-CoV-2 B.1.617.2 Delta variant Spike protein His-tag (Catalog #10878-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.29 nM." class="big_thumb" /> </a> </div></div><div id="ss_next2" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-2" class="cycle-circle-pager"></div><div id="image-caption-10878-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10878-CV","Product Name":"Recombinant SARS-CoV-2 B.1.617.2 Spike GCN4-IZ Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Lys1211 (Thr19Arg, Gly142Asp, Glu156Gly, Phe157del, Arg158del,Leu452Arg, Thr478Lys, Asp614Gly, Pro681Arg, Asp950Asn)(Arg682Ser, Arg685Ser, Lys986Pro, Val987Pro), with a C-terminal GCN4-IZ & 6-His tagAccession # YP_009724390.1","Citations":"4","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-b16172-spike-gcn4-iz-protein-cf_10878-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv">10522-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10522-CV" data-name="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" data-position="4" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="4 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv#PublicationSection"><span class="publications"></span> (4 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10522-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv">10522-CV</a> </div><div id="ss_prev3" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-3" data-cycle-prev="#ss_prev3" data-cycle-next="#ss_next3" data-cycle-caption="#image-caption-10522-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10522-cv_recombinant-sars-cov-2-s1-protein-his-tag-cf-bioactivity-156202014284.jpg" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein (10522-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10522-cv_recombinant-sars-cov-2-s1-protein-his-tag-cf-bioactivity-156202014284.jpg" title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein (10522-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein (10522-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10522-cv_recombinant-sars-cov-2-s1-protein-his-tag-cf-sds-page-1762020103817.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein (10522-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 78-92 kDa and 70-80 kDa, respectively." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10522-cv_recombinant-sars-cov-2-s1-protein-his-tag-cf-sds-page-1762020103817.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein (10522-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 78-92 kDa and 70-80 kDa, respectively." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10522-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-flow-cytometry-1112202016253.jpg" title="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike S1 subunit His-tag Protein (Catalog # 10522-CV) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated anti-His Monoclonal Antibody (IC050A), which does not stain the cells in the absence of recombinant protein (B)." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10522-cv_recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf-flow-cytometry-1112202016253.jpg" alt="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike S1 subunit His-tag Protein (Catalog # 10522-CV) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated anti-His Monoclonal Antibody (IC050A), which does not stain the cells in the absence of recombinant protein (B)." class="big_thumb" /> </a> </div></div><div id="ss_next3" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-3" class="cycle-circle-pager"></div><div id="image-caption-10522-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div><div class="product-attributes" style="margin-top:-10px;padding-top:0px;"><div class="field not3column"><label>&nbsp</label><div class="value"><div class="list_expand not3column options_closed" data-name="Formulations" data-wrapper-type=".formulations_wrapper" style="margin-left:0px;">Available Formulations <div class="expander option_closed"></div></div></div></div></div><div class="forcol3 option_buttons_block"><button class="options_button" data-type="formulations">Formulations</button></div><div class="formulations_wrapper" data-title="Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF" data-catnum="10522-CV"><table class="scf_table"> <thead> <tr> <th>Formulation</th> <th>Catalog #</th> <th>Availability</th> <th>Price</th> <th> </th> </tr> </thead> <tbody><tr class="popup_sku" data-sku="10522-CV-01M"> <td><a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv">Carrier Free</a></td> <td><a href="/products/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv">10522-CV-01M</a></td> <td><div class="popup_stock"></div></td> <td><div class="popup_price"></div></td> <td><a href="/commerce/add-to-cart/929997"><div class="purchase_cart"></div></a></td> </tr> <tr class="scf_footer"> <td colspan="5"><div class="expander option_opened"></div></td> </tr> </tbody> </table> <div class="popup_skus" data-skus='["10522-CV-01M"]' data-rendered="false"></div></div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10522-CV","Product Name":"Recombinant SARS-CoV-2 Spike S1 Subunit His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Pro681, with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"4","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-s1-subunit-his-tag-protein-cf_10522-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv">10500-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10500-CV" data-name="Recombinant SARS-CoV-2 Spike RBD His-tag Protein, CF" data-position="5" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv" title="Recombinant SARS-CoV-2 Spike RBD His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 Spike RBD His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="2 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv#PublicationSection"><span class="publications"></span> (2 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10500-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv">10500-CV</a> </div><div id="ss_prev4" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-4" data-cycle-prev="#ss_prev4" data-cycle-next="#ss_next4" data-cycle-caption="#image-caption-10500-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10500-cv_recombinant-sars-cov-2-s1-protein-rbd-his-tag-hek293-cf-bioactivity-1562020143335.jpg" title="Recombinant SARS-CoV-2 Spike RBD His-tag Protein (HEK293 Expressed) (10500-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10500-cv_recombinant-sars-cov-2-s1-protein-rbd-his-tag-hek293-cf-bioactivity-1562020143335.jpg" title="Recombinant SARS-CoV-2 Spike RBD His-tag Protein (HEK293 Expressed) (10500-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 Spike RBD His-tag Protein (HEK293 Expressed) (10500-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10500-cv_recombinant-sars-cov-2-s1-protein-rbd-his-tag-hek293-cf-sds-page-1762020102917.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike RBD His-tag Protein (HEK293 Expressed) (10500-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 28-38 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10500-cv_recombinant-sars-cov-2-s1-protein-rbd-his-tag-hek293-cf-sds-page-1762020102917.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike RBD His-tag Protein (HEK293 Expressed) (10500-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 28-38 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-surface-plasmon-resonance-spr-2562020143338.jpg" title="Recombinant SARS-CoV-2 Spike RBD His-tag Protein (Catalog # 10500-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (Catalog # 933-ZN) was measured at a concentration range between 0.37 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.149 nM." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-surface-plasmon-resonance-spr-2562020143338.jpg" alt="Recombinant SARS-CoV-2 Spike RBD His-tag Protein (Catalog # 10500-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (Catalog # 933-ZN) was measured at a concentration range between 0.37 nM and 93.5 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.149 nM." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-bioactivity-24112020135423.jpg" title="R&D Systems Spike RBD protein beats the competition. Recombinant SARS-CoV-2 Spike RBD (10500-CV) binds recombinant human ACE-2 (10544-ZN) in a functional ELISA. The binding activity is approximately 3-fold greater than a top competitor鈥檚 Spike RBD protein." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-bioactivity-24112020135423.jpg" alt="R&D Systems Spike RBD protein beats the competition. Recombinant SARS-CoV-2 Spike RBD (10500-CV) binds recombinant human ACE-2 (10544-ZN) in a functional ELISA. The binding activity is approximately 3-fold greater than a top competitor鈥檚 Spike RBD protein." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-sds-page-2411202013577.jpg" title="SDS-PAGE of 1 碌g of R&D Systems Recombinant SARS-CoV-2 Spike RBD (10500-CV) or a competitor鈥檚 Spike RBD protein were run under reducing or non-reducing conditions and visualized by silver staining. The R&D Systems Spike protein runs as a sharper, more definitive band than the competitor鈥檚 Spike RBD protein." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10500-cv_recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf-sds-page-2411202013577.jpg" alt="SDS-PAGE of 1 碌g of R&D Systems Recombinant SARS-CoV-2 Spike RBD (10500-CV) or a competitor鈥檚 Spike RBD protein were run under reducing or non-reducing conditions and visualized by silver staining. The R&D Systems Spike protein runs as a sharper, more definitive band than the competitor鈥檚 Spike RBD protein." class="big_thumb" /> </a> </div></div><div id="ss_next4" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-4" class="cycle-circle-pager"></div><div id="image-caption-10500-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div><div class="product-attributes" style="margin-top:-10px;padding-top:0px;"><div class="field not3column"><label>&nbsp</label><div class="value"><div class="list_expand not3column options_closed" data-name="Formulations" data-wrapper-type=".formulations_wrapper" style="margin-left:0px;">Available Formulations <div class="expander option_closed"></div></div></div></div></div><div class="forcol3 option_buttons_block"><button class="options_button" data-type="formulations">Formulations</button></div><div class="formulations_wrapper" data-title="Recombinant SARS-CoV-2 Spike RBD His-tag Protein, CF" data-catnum="10500-CV"><table class="scf_table"> <thead> <tr> <th>Formulation</th> <th>Catalog #</th> <th>Availability</th> <th>Price</th> <th> </th> </tr> </thead> <tbody><tr class="popup_sku" data-sku="10500-CV-01M"> <td><a href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv">Carrier Free</a></td> <td><a href="/products/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv">10500-CV-01M</a></td> <td><div class="popup_stock"></div></td> <td><div class="popup_price"></div></td> <td><a href="/commerce/add-to-cart/929992"><div class="purchase_cart"></div></a></td> </tr> <tr class="scf_footer"> <td colspan="5"><div class="expander option_opened"></div></td> </tr> </tbody> </table> <div class="popup_skus" data-skus='["10500-CV-01M"]' data-rendered="false"></div></div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10500-CV","Product Name":"Recombinant SARS-CoV-2 Spike RBD His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Arg319-Phe541, with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"2","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-rbd-his-tag-protein-cf_10500-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-b11529-spike-his-tag-protein-cf_11060-cv">11060-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="11060-CV" data-name="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein, CF" data-position="6" class="ecommerce_link" href="/products/recombinant-sars-cov-2-b11529-spike-his-tag-protein-cf_11060-cv" title="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="3 Publications specific to this product" href="/products/recombinant-sars-cov-2-b11529-spike-his-tag-protein-cf_11060-cv#PublicationSection"><span class="publications"></span> (3 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="11060-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-b11529-spike-his-tag-protein-cf_11060-cv">11060-CV</a> </div><div id="ss_prev5" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-5" data-cycle-prev="#ss_prev5" data-cycle-next="#ss_next5" data-cycle-caption="#image-caption-11060-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-binding-activity-312022162223.jpg" title="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag (Catalog # 11060-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-binding-activity-312022162223.jpg" title="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag (Catalog # 11060-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag (Catalog # 11060-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-sds-page-512022142532.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein (Catalog # 11060-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 146 - 166 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-sds-page-512022142532.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein (Catalog # 11060-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 146 - 166 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-surface-plasmon-resonance-spr-2532022141851.jpg" title="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein (Catalog #11060-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.021 nM and 53.1 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of Kd=3.63 nM." class="big_lightbox"> <img src="//images.novusbio.com/images2/11060-cv_recombinant-sars-cov-2-b-1-1-529-spike-his-tag-protein-cf-surface-plasmon-resonance-spr-2532022141851.jpg" alt="Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein (Catalog #11060-CV) was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.021 nM and 53.1 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of Kd=3.63 nM." class="big_thumb" /> </a> </div></div><div id="ss_next5" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-5" class="cycle-circle-pager"></div><div id="image-caption-11060-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"11060-CV","Product Name":"Recombinant SARS-CoV-2 B.1.1.529 Spike His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Lys1211 (Ala67Val, His69del, Val70del, Thr95Ile, Gly142Asp, Val143del, Tyr144del, Tyr145del, Asn211del, Leu212Ile, ins214Glu-Pro-Glu, Gly339Asp, Ser371Leu, Ser373Pro, Ser375Phe, Lys417Asn, Asn440Lys, Gly446Ser, Ser477Asn, Thr478Lys, Glu484Ala, GlnAccession # YP_009724390.1","Citations":"3","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-b11529-spike-his-tag-protein-cf_11060-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf_10594-cv">10594-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10594-CV" data-name="Recombinant SARS-CoV-2 Spike S2 Subunit His-tag Protein, CF" data-position="7" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf_10594-cv" title="Recombinant SARS-CoV-2 Spike S2 Subunit His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 Spike S2 Subunit His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="4 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf_10594-cv#PublicationSection"><span class="publications"></span> (4 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10594-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf_10594-cv">10594-CV</a> </div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-6" data-cycle-prev="#ss_prev6" data-cycle-next="#ss_next6" data-cycle-caption="#image-caption-10594-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10594-cv_recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf-sds-page-1092020151436.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike S2 Subunit His-tag (Catalog # 10594-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 80-100 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10594-cv_recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf-sds-page-1092020151436.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike S2 Subunit His-tag (Catalog # 10594-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 80-100 kDa." alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike S2 Subunit His-tag (Catalog # 10594-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 80-100 kDa." class="big_thumb" /> </a> </div></div><div class="pager_fill"></div><div id="image-caption-10594-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10594-CV","Product Name":"Recombinant SARS-CoV-2 Spike S2 Subunit His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Ser686-Lys1211, with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"4","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-s2-subunit-his-tag-protein-cf_10594-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-p1-spike-gcn4-iz-his-tag-protein-cf_10795-cv">10795-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10795-CV" data-name="Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag Protein, CF" data-position="8" class="ecommerce_link" href="/products/recombinant-sars-cov-2-p1-spike-gcn4-iz-his-tag-protein-cf_10795-cv" title="Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag Protein, CF" ><span> Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="3 Publications specific to this product" href="/products/recombinant-sars-cov-2-p1-spike-gcn4-iz-his-tag-protein-cf_10795-cv#PublicationSection"><span class="publications"></span> (3 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10795-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-p1-spike-gcn4-iz-his-tag-protein-cf_10795-cv">10795-CV</a> </div><div id="ss_prev7" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-7" data-cycle-prev="#ss_prev7" data-cycle-next="#ss_next7" data-cycle-caption="#image-caption-10795-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize2/10795-cv_recombinant-sars-cov-2-p-1-spike-gcn4-iz-his-tag-protein-cf-binding-activity-3032021103041.jpg" title="Recombinant SARS-CoV-2 P.1 Spike (GCN4-IZ) His-tag (Catalog # 10795-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images2/10795-cv_recombinant-sars-cov-2-p-1-spike-gcn4-iz-his-tag-protein-cf-binding-activity-3032021103041.jpg" title="Recombinant SARS-CoV-2 P.1 Spike (GCN4-IZ) His-tag (Catalog # 10795-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 P.1 Spike (GCN4-IZ) His-tag (Catalog # 10795-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10795-cv_recombinant-sars-cov-2-p-1-spike-gcn4-iz-his-tag-protein-cf-sds-page-313202116615.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag (Catalog # 10795-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 140-170 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images2/10795-cv_recombinant-sars-cov-2-p-1-spike-gcn4-iz-his-tag-protein-cf-sds-page-313202116615.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag (Catalog # 10795-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 140-170 kDa." class="big_thumb" /> </a> </div></div><div id="ss_next7" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-7" class="cycle-circle-pager"></div><div id="image-caption-10795-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10795-CV","Product Name":"Recombinant SARS-CoV-2 P.1 Spike GCN4-IZ His-tag Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16 - Lys1211(Leu18Phe, Thr20Asn, Pro26Ser, Asp138Tyr, Arg190Ser, Lys417Thr, Glu484Lys, Asn501Tyr, Asp614Gly, His655Tyr, Thr1027Iso, Val1176Phe)(Arg682Ser, Arg685Ser, Lys986Pro, Val987Pro), with a C-terminal GCN4-IZ & 6-His tagAccession # YP_009724390.1","Citations":"3","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-p1-spike-gcn4-iz-his-tag-protein-cf_10795-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-b117-spike-gcn4-iz-his-protein-cf_10796-cv">10796-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10796-CV" data-name="Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His Protein, CF" data-position="9" class="ecommerce_link" href="/products/recombinant-sars-cov-2-b117-spike-gcn4-iz-his-protein-cf_10796-cv" title="Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His Protein, CF" ><span> Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="2 Publications specific to this product" href="/products/recombinant-sars-cov-2-b117-spike-gcn4-iz-his-protein-cf_10796-cv#PublicationSection"><span class="publications"></span> (2 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10796-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-b117-spike-gcn4-iz-his-protein-cf_10796-cv">10796-CV</a> </div><div id="ss_prev8" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-8" data-cycle-prev="#ss_prev8" data-cycle-next="#ss_next8" data-cycle-caption="#image-caption-10796-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-sds-page-3032021103456.jpg" title="Recombinant SARS-CoV-2 B.1.1.7 Spike (GCN4-IZ) His-tag (Catalog # 10796-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-sds-page-3032021103456.jpg" title="Recombinant SARS-CoV-2 B.1.1.7 Spike (GCN4-IZ) His-tag (Catalog # 10796-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 B.1.1.7 Spike (GCN4-IZ) His-tag (Catalog # 10796-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-sds-page-142021123645.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His-tag (Catalog # 10796-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 140-170 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-sds-page-142021123645.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His-tag (Catalog # 10796-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 140-170 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-2742021111648.jpg" title="Recombinant SARS-CoV-2 B.1.1.7 (UK Variant) Spike protein (GCN4-IZ) His-tag was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=0.6131 nM." class="big_lightbox"> <img src="//images.novusbio.com/images2/10796-cv_recombinant-sars-cov-2-b-1-1-7-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-2742021111648.jpg" alt="Recombinant SARS-CoV-2 B.1.1.7 (UK Variant) Spike protein (GCN4-IZ) His-tag was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=0.6131 nM." class="big_thumb" /> </a> </div></div><div id="ss_next8" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-8" class="cycle-circle-pager"></div><div id="image-caption-10796-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10796-CV","Product Name":"Recombinant SARS-CoV-2 B.1.1.7 Spike GCN4-IZ His Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Lys1211(His69del, Val70del, Tyr145del, Asn501Tyr, Ala570Asp, Asp614Gly, Pro681His, Thr716Iso, Ser982Ala, Asp1118His)(Arg682Ser, Arg685Ser, Lys986Pro, Val987Pro), with a C-terminal GCN4-IZ & 6-His tagAccession # YP_009724390.1","Citations":"2","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-b117-spike-gcn4-iz-his-protein-cf_10796-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf_10561-cv">10561-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10561-CV" data-name="Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein, CF" data-position="10" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf_10561-cv" title="Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein, CF" ><span> Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="2 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf_10561-cv#PublicationSection"><span class="publications"></span> (2 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10561-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf_10561-cv">10561-CV</a> </div><div id="ss_prev9" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-9" data-cycle-prev="#ss_prev9" data-cycle-next="#ss_next9" data-cycle-caption="#image-caption-10561-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-sds-page-177202010427.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein (Catalog # 10561-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-175 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-sds-page-177202010427.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein (Catalog # 10561-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-175 kDa." alt="2 渭g/lane of Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein (Catalog # 10561-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 144-175 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-binding-activity-1572020154258.jpg" title="Recombinant SARS-CoV-2 Spike (GCN4-IZ) His-tag Protein (Catalog # 10561-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-binding-activity-1572020154258.jpg" alt="Recombinant SARS-CoV-2 Spike (GCN4-IZ) His-tag Protein (Catalog # 10561-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-2742021112941.jpg" title="Recombinant SARS-CoV-2 Spike protein with a GCN4-IZ domain and His-tag was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.37 nM and 94.3 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.580 nM. " class="big_lightbox"> <img src="//images.novusbio.com/images2/10561-cv_recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-2742021112941.jpg" alt="Recombinant SARS-CoV-2 Spike protein with a GCN4-IZ domain and His-tag was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.37 nM and 94.3 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=2.580 nM. " class="big_thumb" /> </a> </div></div><div id="ss_next9" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-9" class="cycle-circle-pager"></div><div id="image-caption-10561-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10561-CV","Product Name":"Recombinant SARS-CoV-2 Spike (GCN4-IZ) His Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16 - Lys1211 (R682S, R685S, K986P, V987P), with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"2","Purity":">95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie\u00ae Blue Staining.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-spike-gcn4-iz-his-protein-cf_10561-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-b1351-spike-gcn4-iz-his-protein-cf_10786-cv">10786-CV</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="10786-CV" data-name="Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His Protein, CF" data-position="11" class="ecommerce_link" href="/products/recombinant-sars-cov-2-b1351-spike-gcn4-iz-his-protein-cf_10786-cv" title="Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His Protein, CF" ><span> Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="2 Publications specific to this product" href="/products/recombinant-sars-cov-2-b1351-spike-gcn4-iz-his-protein-cf_10786-cv#PublicationSection"><span class="publications"></span> (2 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>100 渭g</strong><span class="product_price" data-sku="10786-CV-100"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-b1351-spike-gcn4-iz-his-protein-cf_10786-cv">10786-CV</a> </div><div id="ss_prev10" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-10" data-cycle-prev="#ss_prev10" data-cycle-next="#ss_next10" data-cycle-caption="#image-caption-10786-CV" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-binding-activity-303202194241.jpg" title="Recombinant SARS-CoV-2 B.1.351 Spike (GCN4-IZ) His-tag (Catalog # 10786-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-binding-activity-303202194241.jpg" title="Recombinant SARS-CoV-2 B.1.351 Spike (GCN4-IZ) His-tag (Catalog # 10786-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." alt="Recombinant SARS-CoV-2 B.1.351 Spike (GCN4-IZ) His-tag (Catalog # 10786-CV) binds Recombinant Human ACE-2 His-tag (933-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-sds-page-3032021161657.jpg" title="2 渭g/lane of Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His-tag (Catalog # 10786-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 145-168 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-sds-page-3032021161657.jpg" alt="2 渭g/lane of Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His-tag (Catalog # 10786-CV) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 145-168 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-75202181110.jpg" title="Recombinant SARS-CoV-2-B.1.351 South Africa variant Spike protein was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.272 nM." class="big_lightbox"> <img src="//images.novusbio.com/images2/10786-cv_recombinant-sars-cov-2-b-1-351-spike-gcn4-iz-his-protein-cf-surface-plasmon-resonance-spr-75202181110.jpg" alt="Recombinant SARS-CoV-2-B.1.351 South Africa variant Spike protein was immobilized on a Biacore Sensor Chip CM5, and binding to recombinant human ACE-2 (933-ZN) was measured at a concentration range between 0.046 nM and 47.2 nM. The double-referenced sensorgram was fit to a 1:1 binding model to determine the binding kinetics and affinity, with an affinity constant of KD=1.272 nM." class="big_thumb" /> </a> </div></div><div id="ss_next10" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-10" class="cycle-circle-pager"></div><div id="image-caption-10786-CV"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div> </div> <div class="compare_block"><input type="checkbox" class="search_compare_checkbox" data-compare='{"Catalog #":"10786-CV","Product Name":"Recombinant SARS-CoV-2 B.1.351 Spike GCN4-IZ His Protein, CF","Description":"","Reactivity":"SARS-CoV-2","Applications":"Bioactivity","Source":"","Purification":"","Immunogen":"Val16-Lys1211 (Asp80Ala, Asp215Gly, Leu242del, Ala243del, Leu244del, Lys417Asn, Glu484Lys, Asn501Tyr, Asp614Gly, Ala701Val)(Arg682Ser, Arg685Ser, Lys986Pro, Val987Pro), with a C-terminal 6-His tagAccession # YP_009724390.1","Citations":"2","Purity":">95%, by SDS-PAGE under reducing conditions and visualized by silver stain.","Activity":"","Accession #":"","N-terminal Sequence Analysis":"","Predicated Molecular Mass":"","SDS Page":"","Assay Type":"","Format":"","Assay Length":"","Sample Type and Volume Required":"","Sensitivity":"","Interference":"","Datasheet":"<a href=\"\/products\/recombinant-sars-cov-2-b1351-spike-gcn4-iz-his-protein-cf_10786-cv\">view datasheet<\/a>","Price":"Price Not Shown"}'><div class="search_compare">compare</div> <div class="search_compare_text">(select up to 3 products from this page to compare)</div> </div> <div class="clear"></div> </div><div class="new-search-result search-result-wrapper" > <div class="name"><span> <div class="catalog_number_wrapper not3column"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf_bt10569">BT10569</a> </div><h2 class="col3_hdr"><a data-brand="rnd" data-id="BT10569" data-name="Recombinant SARS-CoV-2 Spike S1 Subunit Biotin Protein, CF" data-position="12" class="ecommerce_link" href="/products/recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf_bt10569" title="Recombinant SARS-CoV-2 Spike S1 Subunit Biotin Protein, CF" ><span> Recombinant SARS-CoV-2 Spike S1 Subunit Biotin Protein, CF</span></a></div></h2> <div class="sub-header"> <div class="flourish_left"></div> <div class="flourish_right"></div><div class="prod_details_section"> <div class="segment"> <a title="2 Publications specific to this product" href="/products/recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf_bt10569#PublicationSection"><span class="publications"></span> (2 Publications)</a> </div> <div class="segment" style="float:right;"> <strong>50 渭g</strong><span class="product_price" data-sku="BT10569-050"></span> </div> </div> </div> <div class="images"> <div class="catalog_number_wrapper_col3 forcol3"> <a href="/products/recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf_bt10569">BT10569</a> </div><div id="ss_prev11" class="cycle-pager"><div class="pager_left_on"></div></div><div class="cycle-slideshow slideshows" data-cycle-fx="scrollHorz" data-cycle-timeout="0" data-cycle-pager="#cycle-circle-pager-11" data-cycle-prev="#ss_prev11" data-cycle-next="#ss_next11" data-cycle-caption="#image-caption-BT10569" data-cycle-caption-template="Image {{slideNum}} / {{slideCount}}" data-cycle-slides=".big_thumb_container" ><div class="big_thumb_container"> <a href="//images.novusbio.com/fullsize/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-binding-activity-7102020134224.jpg" title="Biotinylated Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # BT10569) binds Recombinant Human ACE-2 Fc Chimera (10544-ZN) in a functional ELISA." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-binding-activity-7102020134224.jpg" title="Biotinylated Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # BT10569) binds Recombinant Human ACE-2 Fc Chimera (10544-ZN) in a functional ELISA." alt="Biotinylated Recombinant SARS-CoV-2 Spike S1 Subunit His-tag (Catalog # BT10569) binds Recombinant Human ACE-2 Fc Chimera (10544-ZN) in a functional ELISA." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-sds-page-8102020111232.jpg" title="2 渭g/lane of Biotinylated Recombinant SARS-CoV-2 Spike S1 Subunit Biotin Protein, CF (Catalog # BT10569) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 105-140 kDa." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-sds-page-8102020111232.jpg" alt="2 渭g/lane of Biotinylated Recombinant SARS-CoV-2 Spike S1 Subunit Biotin Protein, CF (Catalog # BT10569) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 105-140 kDa." class="big_thumb" /> </a> </div><div class="big_thumb_container" style="visibility:hidden;"> <a href="//images.novusbio.com/fullsize/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-flow-cytometry-1112202016720.jpg" title="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike S1 Biotin Protein (Catalog # BT10569) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated Streptavidin (F0050), which does not stain the cells in the absence of recombinant protein (B)." class="big_lightbox"> <img src="//images.novusbio.com/images/protein/bt10569_recombinant-sars-cov-2-spike-s1-subunit-biotin-protein-cf-flow-cytometry-1112202016720.jpg" alt="In a functional flow cytometry test, (A) Recombinant SARS-CoV-2 Spike S1 Biotin Protein (Catalog # BT10569) binds to HEK293 human embryonic kidney cell line transfected with recombinant human ACE-2 and EGFP. Ligand binding was detected by staining cells with APC-conjugated Streptavidin (F0050), which does not stain the cells in the absence of recombinant protein (B)." class="big_thumb" /> </a> </div></div><div id="ss_next11" class="cycle-pager"><div class="pager_right_on"></div></div><div id="cycle-circle-pager-11" class="cycle-circle-pager"></div><div id="image-caption-BT10569"></div> </div><div class="review_publication_wrapper forcol3"></div> <div class="product-attributes"><div class="field not3column"><label>Reactivity:</label><div class="value"><span title="SARS-CoV-2">V</span><div class="myModal">Species Glossary</div></div></div><div class="forcol3 bottom_margin"><strong>Reactivity:</strong> <span title="SARS-CoV-2">V</span></div><div class="field not3column"><label>Applications:</label><div class="value"><span class="application-tooltip-text" title="Bioactivity">Bioactivity</span></div></div><div class="forcol3 bottom_margin"><strong>Applications:</strong> <span 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