Proteins Products & Reviews

Solution Stable Enzyme for Mass Spectrometry

Antibody cross-reactivity analysis using the PEPperCHIP® Humane Epitome Microarray with all epitopes of the Immune Epitope Database with the host “human”

29,326 random signature peptides 

Recombinant Rubella (strain F-Therien) virus-like particles consisting of spike glycoprotein E1, spike glycoprotein E2 and Capsid protein, produced in mammalian HEK293 cells.

Novel Coronavirus 2019-nCoV (SARS-CoV-2) Spike Glycoprotein (S1) is a recombinant antigen which contains the Spike protein amino acids 1-674. Spike S1 protein is manufactured in HEK293 mammalian cells, ensuring the most authentic post-translational modifications.

Novel Coronavirus 2019-nCoV (SARS-CoV-2) Spike Glycoprotein (S2) is a recombinant antigen which contains the Spike S2 protein, amino acids 685-1211. Spike S2 is manufactured in mammalian HEK293 cells to ensure the most authentic post-translational modifications.

SARS-CoV-2 Nucleoprotein is a recombinant antigen manufactured in E. coli cells to high purity for use in vaccine research and immunoassay development. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.

SARS-CoV-2 Spike Glycoprotein (S2) is a recombinant antigen which contains the Spike protein amino acids 685-1211 of subunit 2. Spike S2 protein is manufactured to high yield and purity using the Native Antigens baculovirus-insect cell platform. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.

SARS-CoV-2 Spike-E-M Mosaic protein is a recombinant antigen manufactured in E. coli with greater than 95% purity, and containing the Spike (S), Envelope (E) and Membrane (M) immunodominant regions. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.

Human Coronavirus 229E Nucleoprotein is a recombinant protein containing 359 amino acids derived from the nucleocapsid sequence, with a C-terminal 6xHis tag. It is manufactured in E. coli with greater than 95% purity.

DNA variant libraries for expression of antibodies, antigens and other proteins. 

India Variant B.1.617 Spike Protein, as well as spike mutant proteins from the UK, South African, and Brazilian Variants. Available now!

Ectodomain, stabilized prefusion conformation, resistant to furin cleavage

HEK293 expressed, high ACE-2 binding  

Tn5 insect cell expressed, high ACE-2 binding  

HEK293 expressed, high ACE-2 binding  

Sf21 insect cell expressed, over 95% purity  

SARS-CoV-2, which causes the global pandemic coronavirus disease 2019 (Covid-19), belongs to a family of viruses known as coronaviruses that are commonly comprised of four structural proteins. One of the proteins, SARS-CoV-2 Spike Protein (S Protein), is a glycoprotein that mediates membrane fusion and viral entry, and as such is a crucial COVID-19 target.  R&D Systems SARS-CoV-2 Spike range of bioactive proteins are valida…

CHO expressed. GCN4-IZ trimerization domain. Prefusion Conformation. High ACE-2 binding  

South African Variant  

UK Variant. Resistant to Furin & Stabilized Prefusion Conformation

Brazilian Variant

Recombinant SARS-CoV-2 S1 Subunit Protein with C-terminal His-tag, secreted from the serum-free medium of transfected HEK293 cells. Purchase will also include one vial of normal control (Catalog #. 230-20001), the culture supernatant of HEK293 cell transfected with empty expression vector.

Recombinant SARS-CoV-2, S1 Subunit Protein (RBD) with C-terminal His tag, derived from the transfected human HEK293 cells.

Recombinant monkeypox virus envelope protein H3L with an N-terminal His-tag, derived from E.coli.