Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), also known as novel coronavirus spike S1 and nCoV spike S1, GenBank Accession No. QHD43416.1, a.a. 319-541, with a C-terminal mouse Fc-tag (mFc), expressed in a HEK293 cell expression system. MW=50 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Description: SARS-CoV-2 Spike S1 receptor binding domain (RBD), also known as SARS-CoV-2 Spike 1 RBD, novel coronavirus Spike 1 RBD and nCoV Spike 1 RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal Avi-His-tag, expressed in a HEK293 cell expression system. MW= 29 kDa.

Description: Severe acute respiratory Coronavirus Spike trimer (S1+S2), with 682RRAR685>A, K986P, and V987P mutations, Genbank Accession No. MN908947, a.a. 1-1213, with a C-terminal His-tag, expressed in a HEK293 expression system. MW=139 kDa.

Description: The Spike (SARS-CoV-2, UK variant) Pseudotyped Lentivirus were produced with SARS-CoV-2 UK Variant Spike (Genbank Accession #QHD43416.1 with UK variant mutations; see below for details) as the envelope glycoproteins instead of the commonly used VSV-G. These pseudovirions contain the firefly luciferase gene driven by a CMV promoter, therefore, the spike-mediated cell entry can be measured via luciferase activity. The Spike (SARS-CoV-2, UK variant) pseudotyped lentivirus can be used to measure the activity of neutralizing antibody against SARS-CoV-2 UK variant in a Biosafety Level 2 facility._x000D_

Description: The Spike (SARS-CoV-2) Pseudotyped VSV Delta G (Luciferase Reporter) was produced with SARS-CoV-2 Spike corresponding to the initial strain (Genbank Accession #QHD43416.1) as the envelope glycoprotein instead of VSV-G. The pseudovirions contain the firefly luciferase gene; therefore, the spike-mediated cell entry can be measured via luciferase activity. The Spike (SARS-CoV-2) Pseudotyped VSV Delta G (Luciferase Reporter) can be used to measure the activity of a neutralizing antibody against SARS-CoV-2 in a Biosafety Level 2 facility.The Spike (SARS-CoV-2) Pseudotyped VSV Delta G (Luciferase Reporter) has been validated for use with target cells Vero-E6, Calu-3, and ACE2-HEK293 (BPS Bioscience #79951). Spike VSV Delta G are preferred for use in cells such as Vero-E6 and Calu-3.The infectivity of VSV-Delta G pseudotypes is restricted to a single round of replication, therefore the pseudotypes can be handled using BSL-2 containment practices.

Description: The pandemic coronavirus disease 2019 (COVID-19) is caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). As the first step of viral replication, the virus attaches to the host cell surface before entering the cell. The viral Spike protein recognizes and attaches to the Angiotensin-Converting Enzyme 2 (ACE2) receptor found on the surface of type I and II pneumocytes, endothelial cells, and ciliated bronchial epithelial cells. Drugs targeting the interaction between the Spike protein of SARS-CoV-2 and ACE2 may offer protection against the viral infection._x000D_
The SARS-CoV-2 Spike Pseudotyped Lentivirus (Luc-eGFP dual reporter) were produced by replacing the VSV-G fusion glycoprotein with SARS-CoV-2 Spike protein (Genbank Accession #QHD43416.1) as a surrogate viral envelope protein. These pseudovirions also contain a firefly luciferase and eGFP cassette (Luc-P2A-eGFP) driven by a CMV promoter. The luciferase and eGFP are coexpressed under the CMV promoter in the transduced cells. Therefore, the Spike-mediated entry into the target cell can be conveniently measured via luciferase reporter activity or eGFP expression. The SARS-CoV-2 Spike pseudotyped lentivirus can be used in a cellular assay to measure the activity of neutralizing antibody against SARS-CoV-2._x000D_

Description: SARS-CoV-2 Spike protein S1 subunit, receptor binding domain (RBD), also known as SARS-CoV-2 spike RBD, novel coronavirus spike RBD and nCoV spike RBD, GenBank Accession No. MN_908947.1, a.a. 319-541, fused at the C-terminus of the Fc portion of human IgG1, with a C-terminal Avi-tag™, expressed in a HEK293 cell expression system. MW=54 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 16-685 with a C-terminal Avi-His-tag, expressed in a HEK293 expression system, MW=78 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Description: SARS-CoV-2 Spike S1 receptor binding domain (RBD), also known as SARS-CoV-2 Spike 1 RBD, novel coronavirus Spike 1 RBD and nCoV Spike 1 RBD, GenBank Accession No. QHD43416.1, a.a. 319-541 with a V367F mutation and a with C-terminal Avi-His-tag, expressed in a HEK293 cell expression system. MW= 28 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: SARS-CoV-2 Spike S1 receptor binding domain (RBD), also known as SARS-CoV-2 Spike 1 RBD, novel coronavirus Spike 1 RBD and nCoV Spike 1 RBD, GenBank Accession No. QHD43416.1, a.a. 319-541 with a V367F mutation and a with C-terminal Avi-His-tag, expressed in a HEK293 cell expression system. MW= 28 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: Recombinant SARS-CoV-2 Spike protein, S1 subunit encompassing amino acids 16-685. This protein corresponds to SARS-CoV-2 Variant B.1.351 originally identified in South Africa and contains mutations L18F, D80A, D215G, R246I, K417N, E484K, N501Y, D614G. It also contains a C-terminal Avi-Tag™ followed by a C-terminal His-tag (6xHis). The recombinant protein is ≥90% pure following affinity purification.