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Rabbit IgG Anti HCoV-OC43 Spike (S1) Polyclonal Antibody
Polyclonal antibody against human coronavirus OC43 spike subunit 1 (S1) protein. Antibody does not cross-react with SARS-CoV-2 spike subunit 1. Suitable for use in ELISA and other immunoassay development.
Rabbit IgG Anti SARS-CoV-2 Nucleoprotein Polyclonal Antibody
Rabbit anti SARS-CoV-2 (Covid-19) nucleoprotein polyclonal antibody, for use in ELISA and Western blot applications. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Rabbit IgG Anti SARS-CoV-2 Spike (S1) RBD Polyclonal Antibody
Rabbit anti SARS-CoV-2 (Covid-19) spike receptor binding domain (RBD) antibody, for use in ELISA and Western blot applications. Antibody recognizes RBD from Wuhan-Hu-1, UK (Alpha), South African (Beta) Brazilian (Gamma) and Indian variants. Antibody does not cross-react in ELISA with HCoV-229E full-length spike protein (REC31880). SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Rabbit IgG Anti-SARS-CoV-2 Nucleoprotein Antibody (CR3009)
Rabbit IgG anti SARS-CoV-2 nucleoprotein is a recombinant monoclonal antibody that recognizes and binds the non-linear/conformational epitope of the N protein of SARS-CoV and SARS-CoV-2. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Rabbit IgG Anti-SARS-CoV-2 Nucleoprotein Antibody (CR3018)
Rabbit IgG anti SARS-CoV-2 nucleoprotein antibody (clone CR3018) is a recombinant monoclonal antibody that recognizes and binds the amino acid residues between 11-19 of the N protein of SARS-CoV and SARS-CoV-2. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Rabbit IgG Anti-SARS-CoV-2 Spike (S1) Antibody (CR3022)
Rabbit IgG anti SARS-CoV-2 Spike (S1) is a monoclonal antibody that recognizes the the SARS-CoV and SARS-CoV-2 Spike glycoprotein, the causative agent of COVID-19. Antibody binds to both SARS-CoV and SARS-CoV-2 with high affinity at amino acids 318-510 (RBD, Receptor Binding Domain) in the S1 subunit of the Spike protein.
Rabbit IgG Anti-SARS-CoV-2 Spike (S1) Polyclonal Antibody
SARS-CoV-2 Spike (S1) polyclonal antibody recognizes the SARS-CoV-2 Spike glycoprotein subunit 1. Antibody is suitable for Western blot, IF and ELISA; it does not cross-react in ELISA with HCoV-229E full-length spike protein (REC31880). SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Rabbit IgG Anti-SARS-CoV-2 Spike (S2) Polyclonal Antibody
SARS-CoV-2 Spike (S2) polyclonal antibody is an antibody that recognizes the SARS-CoV-2 Spike glycoprotein subunit 2. Antibody is suitable for use in Western blot and ELISA and does not cross-react in ELISA with HCoV-229E full-length spike protein (REC31880). SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
Recombinant Autographa Californica Multiple Nucleopolyhedrovirus, Lysate
Recombinant Autographa californica multiple nucleopolyhedrovirus (ACMNPV) particles, containing GFP expression cassette. Baculovirus particles are lysed and inactivated for use as a control when testing baculovirus-insect cell derived material for vaccine and immunoassay development.
Recombinant Cat IgE-Fc Domain
Recombinant cat IgE-Fc domain, a cat immunoglobulin epsilon heavy chain constant region (IgE-Fc), manufactured in mammalian cells. Recommended as an immunogen to generate antibodies against cat anti-IgE-Fc, a standard/control for cat IgE-Fc assays or other cat IgE-Fc domain applications.
Recombinant Dog IgE-Fc Domain
Recombinant dog IgE-Fc domain, a dog immunoglobulin epsilon heavy chain constant region (IgE-Fc), manufactured in mammalian cells. Recommended as an immunogen to generate antibodies against dog anti-IgE-Fc, a standard/control for dog IgE-Fc assays or other dog IgE-Fc domain applications.
Recombinant Horse IgE-Fc Domain
Recombinant horse IgE-Fc domain, a horse immunoglobulin epsilon heavy chain constant region (IgE-Fc), manufactured in mammalian cells. Recommended as an immunogen to generate antibodies against horse anti-IgE-Fc, a standard/control for horse IgE-Fc assays or other horse IgE-Fc domain applications.
Recombinant Human Cystatin C protein
Human Cystatin C, produced in HEK293 cells and purified by metal affinity chromatography and dialysis.
Recombinant Human HE4 protein
Human HE-4, C-terminal His-tag, produced in HEK293 cells and purified by immobilised metal affinity chromatography and dialysis.
Recombinant Human IgE (kappa L), His-Tag
Recombinant human IgE (kappa L) protein is composed of the human Ɛ heavy chain and the Ƙ light chain. The heavy chain is C-terminally His-tagged. For use as a standard in assays or as a control antibody.
Recombinant Human IgE-Fc Domain
Recombinant human IgE-Fc domain, a human immunoglobulin epsilon heavy chain constant region (IgE-Fc), manufactured in mammalian cells. Recommended as an immunogen to generate antibodies against human anti-IgE-Fc, a standard/control for human IgE-Fc assays or other human IgE-Fc domain applications.
Recombinant Human NSE protein
Recombinant Human neuron-specific enolase (NSE) with a C-terminal His-tag, expressed in E. coli and purified by metal affinity chromatography.
Recombinant Human proGRP protein
Recombinant Human proGRP protein with a C-terminal His-tag, expressed in HEK293 cells and purified by metal affinity chromatography and dialysis.
Recombinant human S100B protein
Recombinant Human S100B protein with a C-terminal His-tag, expressed in E. coli and purified by immobilised metal affinity chromatography and dialysis.
Recombinant Human SCCA-1 protein
Recombinant Human SCCA-1 protein with a C-terminal His-tag, expressed in E. coli and purified by metal affinity chromatography.
Recombinant Mouse IgE-Fc Domain
Recombinant mouse IgE-Fc domain, a mouse immunoglobulin epsilon heavy chain constant region (IgE-Fc), manufactured in mammalian cells. Recommended as an immunogen to generate antibodies against mouse anti-IgE-Fc, a standard/control for mouse IgE-Fc assays or other mouse IgE-Fc domain applications.
Respiratory Syncytial Virus A Glycoprotein G (RSV A gG)
Recombinant Respiratory Syncytial Virus A glycoprotein G, comprising amino acids 67-297, and incorporating a C-terminal 6xHis tag, produced in mammalian HEK293 cells.
Respiratory Syncytial Virus A Glycoprotein G, Human Fc-tag
Recombinant Respiratory Syncytial Virus A glycoprotein G produced in HEK293 cells with C-terminal human Fc-tag.
Respiratory Syncytial Virus A Glycoprotein G, Mouse Fc-tag
Recombinant Respiratory Syncytial Virus A glycoprotein G produced in HEK293 cells with C-terminal mouse Fc-tag. Greater than 95% purity by SDS-PAGE.
![Influenza B [B/Washington/02/2019] NA Respiratory Syncytial Virus A Lysate](https://thenativeantigencompany.com/wp-content/uploads/2020/12/Coronavirus-45-300x300.jpg)
Respiratory Syncytial Virus A Lysate
Respiratory Syncytial Virus A Lysate is purified from Vero cells using sucrose density gradient ultracentrifugation, disrupted in the presence of detergent and heat inactivated. Viral lysates can be utilized as an antigen, as a source for the purification of viral proteins, or for the detection of viral antibodies.
Respiratory Syncytial Virus B Lysate
Respiratory Syncytial Virus B Lysate is purified from Vero cells using sucrose density gradient ultracentrifugation, disrupted in the presence of detergent and heat inactivated. Viral lysates can be utilized as an antigen, as a source for the purification of viral proteins, or for the detection of viral antibodies.
Rheumatoid Factor IgM, Recombinant
The monoclonal recombinant RF is expressed in HEK293 cells as a J-chain–stabilised pentameric human IgM. It shows native-like reactivity and is compatible across major clinical platforms, demonstrating strong recovery in multiple diagnostic systems. For bulk inquiries in KU and other information, please contact us.
Rheumatoid Factor, Recombinant
The monoclonal recombinant RF is expressed in HEK293 cells as a J-chain–stabilised pentameric human IgM and diluted in human plasma. It shows native-like reactivity and is compatible across major clinical platforms, demonstrating strong recovery in multiple diagnostic systems. Contact us for further information and bulk inquiries.
Rhinovirus Type 1A Lysate
Rhinovirus type 1A lysate produced from MRC-5 or HeLa cells. Purified using sucrose density gradient ultracentrifugation, heat-inactivated and tested for absence of viral growth in validate tissue culture infectivity assays.
Rift Valley Fever Virus Nucleoprotein
Recombinant Rift Valley Fever Virus Nucleoprotein, comprising amino acids 2-245 and incorporating an N-terminal His-tag, expressed in mammalian HEK293 cells.
Ross River Virus Recombinant Antigen
Recombinant Ross River virus structural polyprotein (sequence strain T48) expressed in HEK293 cells and purified from culture supernatant using density gradient centrifugation and polyethylene glycol precipitation.
Rotavirus VP7 Protein, Sheep Fc-Tag
Rotavirus (RVA/Vaccine/USA/Rotarix-AROLA490AB/1988/G1P1A[8]) VP7 protein is expressed in HEK293 cells and purified from culture supernatant by Protein G and ion exchange chromatography.
RPE-IgG Conjugation Kit
This kit allows users to generate their own liquid stable conjugates which can be customized and are fully scalable from 0.01 mg to gram scale. Each kit includes all reagents needed to conjugate the stated amount of IgG at a 1:1 RPE:IgG ratio. Kits are available for conjugation of 0.3mg, 1mg and 5mg.
Rubella Spike Glycoprotein E1 (Strain F-Therien)
Recombinant Rubella spike glycoprotein E1 (strain F-Therien), produced in mammalian HEK293 cells.
Rubella Virus Nucleoprotein (Strain F-Therien)
Recombinant Rubella Nucleoprotein (strain F-Therien), produced in mammalian HEK293 cells.
Rubella Virus VLP Gen.2
Recombinant Rubella (strain F-Therien) virus-like particles consisting of spike glycoprotein E1, spike glycoprotein E2 and Capsid protein, produced in mammalian HEK293 cells. The Native Antigen Company have redeveloped the Rubella VLP offering a second-generation product of higher quality and reproducibility. Contact us for the bulk inquiry discount.
Saint Louis Encephalitis Virus NS1 Protein
Recombinant Saint Louis encephalitis virus NS1 protein produced in HEK293 cells, incorporating a C-terminal 6x His-tag.
Note: Discounts shown below are for the smallest vial size.
Quantity discountsQuantity Discount Price 5-9 15% £382.70 10-Unlimited 30% £315.17 
Salmonella Typhi Outer Membrane Protein (OMP), His-Tag (E. coli)
Salmonella typhi Outer Membrane Protein (OMP) is a recombinant antigen manufactured to high purity in E. coli cells for immunoassay development and other applications.
SARS Coronavirus Envelope Protein (E. coli)
SARS Coronavirus Envelope Protein is a recombinant antigen which contains the N-terminus (1-76 amino acids) of the Envelope protein immunodominant regions. It is manufactured in E. coli and is immunoreactive with sera from SARS-infected individuals.
SARS Coronavirus Membrane Protein (Matrix) (E. coli)
SARS Coronavirus Membrane Protein (Matrix) is a recombinant protein (also known as E1 glycoprotein or Matrix) manufactured in E. coli. Protein contains duplicate Membrane immunodominant region sequences fused with a proprietary linker and His-tag. Immunoreactive with sera from SARS-infected individuals.
SARS Coronavirus Nucleoprotein (C-Term) (E. coli)
SARS Coronavirus Nucleoprotein (C-Term) is a recombinant protein (also known as the nucleocapsid core antigen) comprising amino acids 340-390 immunodominant regions. it is manufactured in E. coli, with Immunoreactive with sera from SARS-infected individuals with minimum specificity problems.
SARS Coronavirus Nucleoprotein (N-Term) (E. coli)
SARS Coronavirus Nucleoprotein (N-Term) is a recombinant protein (also known as the nucleocapsid core antigen) comprising amino acids 1-49 immunodominant regions. It is manufactured in E. coli and immunoreactive with sera from SARS-infected individuals.
SARS Coronavirus Nucleoprotein, His-Tag (HEK293)
SARS Coronavirus Nucleoprotein (AA 2-422) is a recombinant antigen manufactured in HEK293 cells for use in vaccine research and immunoassay development.
SARS Coronavirus Spike Glycoprotein (S1), His-Tag (HEK293)
SARS Coronavirus Spike Glycoprotein (S1) is a recombinant antigen which contains amino acids 1-666 of S1 subunit. It is manufactured in mammalian HEK293 cells with
SARS-CoV-2 (B.1.1.28) Spike Glycoprotein (S1) RBD, His-Tag (HEK293)
BRAZILIAN (GAMMA) VARIANT SARS-CoV-2 spike receptor binding domain (RBD) from Brazilian variant. Contains amino acid changes K417T, E484K, N501Y relative to Wuhan Hu-1. The protein was produced in HEK293 cells and purified from culture supernatant. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
SARS-CoV-2 (B.1.1.28/P.1) Stabilized Spike Glycoprotein (Full-Length), His-Strep-Tag (HEK293)
BRAZILIAN (GAMMA) VARIANT Pre-fusion stabilized SARS-CoV-2 Spike protein of the virus variant B.1.1.28/P1 (Brazilian variant) containing amino acid changes L18F, T20N, P26S, D138Y, R190S, K417T, E484K, N501Y, D614G, H655Y, T1027I, V1176F relative to Wuhan Hu-1. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
SARS-CoV-2 (B.1.1.529/Omicron) Nucleoprotein, His-Tag (E. coli)
OMICRON VARIANT SARS-CoV-2 (B.1.1.529/Omicron) nucleoprotein is a recombinant Omicron NP expressed and purified from E. coli. Compared to wild type SARS-CoV-2 nucleoprotein, Omicron nucleoprotein has the following mutations, P13L, ∆31-33, R203K, G204R. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
SARS-CoV-2 (B.1.1.529/Omicron) Spike Glycoprotein (S1) RBD, His-Tag (HEK293)
OMICRON VARIANT SARS-CoV-2 (B.1.1.529/Omicron) Spike RBD (receptor binding domain) protein. Relative to Wuhan-Hu-1 this protein has following amino acid changes: G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H. Biotinylated protein also available. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
SARS-CoV-2 (B.1.1.529/Omicron) Spike Glycoprotein (S1), Sheep Fc-Tag (HEK293)
OMICRON VARIANT SARS-CoV-2 (B.1.1.529/Omicron) Spike subunit 1 protein. Relative to Wuhan-Hu-1 this protein has following amino acid changes: A67V, H69del, V70del, T95I, G142D, V143del, Y144del, Y145del, N211del, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y. Biotinylated protein available. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
SARS-CoV-2 (B.1.1.529/Omicron) Stabilized Spike Glycoprotein (Trimeric), His-Strep-Tag (HEK293)
OMICRON VARIANT SARS-CoV-2 (B.1.1.529/Omicron) stabilized spike recombinant protein. Relative to Wuhan-Hu-1 the protein has amino acid changes A67V, H69del, V70del, T95I, G142D, V143del, Y144del, Y145del, N211del, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H, N764K, D796Y, N856K, Q954H, N969K, L981F. The furin cleavage site has been altered to GSAS, and the protein has 6 amino acid changes in the S2 portion to stabilize trimer formation, commonly known as HexaPro. The C-terminus contains a T4 foldon domain. Biotinylated protein available. SARS-CoV-2, previously known as the 2019 Novel Coronavirus (2019-nCoV), causes the pandemic COVID-19 disease.
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