The spike (S) glycoprotein of coronaviruses is essential for binding of the virus to the host cell at the beginning of the infection process. The severe acute respiratory syndrome-coronavirus (SARS-CoV) spike (S) glycoprotein is responsible for membrane fusion and is therefore required for virus entry and cell fusion. The target protein is also a major immunogen and a possible target for entry inhibitors.
The SARS-CoV-2 spike (S) protein is a large type I transmembrane protein composed of two subunits, S1 and S2. The S1 subunit contains a receptor-binding domain (RBD) responsible for binding to the host cell receptor angiotensin-converting enzyme 2 (ACE2). The S2 subunit mediates fusion between the viral and host cell membranes. The S1 RBD protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.
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S1(RBD) with and without His-Tag are active.
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RBD (Tag-free) binds ACE2 detected by monoclonal antibody CR3022 (conformational antibody).
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SDS-PAGE/Coll. Coomassie
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Histogram of marked lane in gel picture
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The table below lists publications that mention this catalog protein. To sort the table, click on the first row.
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| Citation Date |
Citation Title |
Citation Authors |
Citation Abstract |
Citation DOI |
| 28 November 2022 |
High antibody levels and reduced cellular response in children up to one year after SARS-CoV-2 infection |
Eva-Maria Jacobsen, Dorit Fabricius, Magdalena Class, Fernando Topfstedt, Raquel Lorenzetti, Iga Janowska, et al. |
The COVID-19 course and immunity differ in children and adults. We analyzed immune response dynamics in 28 families up to 12 months after mild or asymptomatic infection. Unlike adults, the initial response is plasmablast-driven in children. Four months after infection, children show an enhanced specific antibody response and lower but detectable spike 1 protein (S1)-specific B and T cell ... read more
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https://doi.org/10.1038/s41467-022-35055-1 |
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