Other Proteins

Human CD55 (Genbank #NM_000574, a.a. 35-353, with C-terminal Avi-His-tag, expressed in HEK293 cells. MW = 38 kDa. Enzymatically biotinylated using Avi-Tag™ technology. Biotinylation is ≥90%.

Recombinant ORF9b, full length, encompassing amino acids 1-97(end). This recombinant protein corresponds to SARS-CoV-2 accessory protein ORF9b. It was expressed in E.coli and contains an N-terminal GST tag and a prescission protease cleavage site. The recombinant protein is >90% pure following GST affinity purification.

Recombinant ORF9b, full length, encompassing amino acids 1-97(end). This recombinant protein corresponds to SARS-CoV-2 accessory protein ORF9b. It was expressed in E.coli and contains an N-terminal GST tag and a prescission protease cleavage site. The recombinant protein is >90% pure following GST affinity purification.

Recombinant SARS-CoV-2 Spike protein, RBD (Receptor Binding Domain) encompassing amino acids 319-541. This protein corresponds to SARS-CoV-2 Variant B.1.1.7, originally discovered in the United Kingdom, and contains mutation N501Y. It also contains a C-terminal Avi-Tag™ and a C-terminal His-tag. The recombinant protein is ≥90% pure following high affinity Ni-NTA purification.

Recombinant SARS-CoV-2 Spike protein, RBD (Receptor Binding Domain) encompassing amino acids 319-541. This protein corresponds to SARS-CoV-2 Variant B.1.1.7, originally discovered in the United Kingdom, and contains mutation N501Y. It also contains a C-terminal Avi-Tag™ and a C-terminal His-tag. The recombinant protein is ≥90% pure following high affinity Ni-NTA purification.

Recombinant SARS-CoV-2 Spike protein, RBD (Receptor Binding Domain) encompassing amino acids 319-541. This protein corresponds to SARS-CoV-2 Variant B.1.351, orignally discovered in South Africa and contains mutations K417N, E484K and N501Y. It also contains a C-terminal Avi-Tag™ and a C-terminal His-tag. The recombinant protein is ≥90% pure following high affinity Ni-NTA purification and shows less than 5% aggregation in gel filtration. 

Recombinant SARS-CoV-2 Spike protein, RBD (Receptor Binding Domain) encompassing amino acids 319-541. This protein corresponds to SARS-CoV-2 Variant B.1.351, orignally discovered in South Africa and contains mutations K417N, E484K and N501Y. It also contains a C-terminal Avi-Tag™ and a C-terminal His-tag. The recombinant protein is ≥90% pure following high affinity Ni-NTA purification and shows less than 5% aggregation in gel filtration. 

This purified recombinant monoclonal antibody is a human Anti-CD19 IgG which recognizes CD19 antigen. The variable regions for this antibody are based on an FDA-approved drug. This antibody has been tested for specific binding affinity to purified human CD19 protein (BPS Bioscience, #101015) in a colorimetric ELISA binding assay.

This purified recombinant monoclonal antibody is a human Anti-CD19 IgG which recognizes CD19 antigen. The variable regions for this antibody are based on an FDA-approved drug. This antibody has been tested for specific binding affinity to purified human CD19 protein (BPS Bioscience, #101015) in a colorimetric ELISA binding assay.