Proteins and Peptides
Save time and accelerate your studies with ready-to-use proteins and peptides that can meet your needs for standards, controls, enzymes, substrates, and more. Whether you need a purified protein, cell lysate, cell supernatant, or inhibitor, you’ll find a reagent manufactured to RayBiotech’s high standards for quality in our Peachtree, GA, facilities.
Source Hard-To-Find Proteins For A Range Of Applications
Within the dedicated categories below, you can find proteins and peptides that are available from few other vendors.
Proteins and Peptides Categories
Popular Proteins and Peptides
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Recombinant SARS-CoV-2 Omicron Variant BQ1.1 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BQ1.1 spike S1 subunit receptor binding protein (RBD) with 20 mutant sites (G339H, R346T, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, K444T, L452R, N460K, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells. -
Recombinant SARS-CoV-2 Omicron Variant BA.2.75.2 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.2.75.2 spike S1 subunit receptor binding protein (RBD) with 19 mutant sites (G339H, R346T, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, G446S, N460K, S477N, T478K, E484A, F486S, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 Omicron Variant BA.5 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.5 spike S1 subunit receptor binding protein (RBD) with 16 mutant sites (G339D, S371F, S373P, S375F, T376A, D405N, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 Omicron Variant BA.4 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.4 spike S1 subunit receptor binding protein (RBD) with 17 mutant sites (G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 S2 Subunit Protein (full length) Recombinant SARS-CoV-2 S2 Subunit Protein with C-terminal tag, derived from the transfected human HEK293 cells.
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Recombinant Universal Nuclease Recombinant universal nuclease affinity-purified from E. coli with high endonuclease activity. Tolerates high concentrations of urea, which is commonly used for insoluble protein solubilization and purifications. Degrades all forms of DNA and RNA. -
Recombinant SARS Associated Coronavirus Envelope, His Tag SARS-Associated Coronavirus Envelope Recombinant, His Tag -
Recombinant Human IGFBP-3 Recombinant human IGFBP-3 protein, derived from the transfected human HEK293 cells.
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Recombinant Human Ceruloplasmin Protein, Biotinylated Biotin-conjugated recombinant human ceruloplasmin protein, derived from the transfected human HEK293 cells.
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Recombinant Human Alpha-2-Macroglobulin/A2M Protein, Biotinylated Biotin-conjugated recombinant human alpha-2-macroglobulin/A2M protein, derived from the transfected human HEK293 cells.
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Recombinant Human Interleukin-7 Protein, Biotinylated Biotin-conjugated recombinant human interleukin-7 protein, derived from the transfected human HEK293 cells.
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Recombinant Human CEACAM8/CD67 Protein, Biotinylated Biotin-conjugated recombinant human CEACAM8/CD67 protein, derived from the transfected human HEK293 cells.
DatasheetNew Products
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Recombinant Human Interleukin-2 (IL-2) Recombinant human interleukin-2 (IL-2) with a C-terminal His-tag, derived from the transfected HEK293 cells. -
Recombinant SARS-CoV-2 Omicron Variant BQ1.1 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BQ1.1 spike S1 subunit receptor binding protein (RBD) with 20 mutant sites (G339H, R346T, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, K444T, L452R, N460K, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 Omicron Variant BA.2.75.2 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.2.75.2 spike S1 subunit receptor binding protein (RBD) with 19 mutant sites (G339H, R346T, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, G446S, N460K, S477N, T478K, E484A, F486S, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 Omicron Variant BA.5 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.5 spike S1 subunit receptor binding protein (RBD) with 16 mutant sites (G339D, S371F, S373P, S375F, T376A, D405N, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 Omicron Variant BA.4 Spike S1 RBD Protein Recombinant SARS-CoV-2 Omicron variant BA.4 spike S1 subunit receptor binding protein (RBD) with 17 mutant sites (G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, L452R, S477N, T478K, E484A, F486V, Q498R, N501Y, Y505H) with C-terminal His-tag, derived from the transfected human HEK293 cells.
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Recombinant SARS-CoV-2 S2 Subunit Protein (full length) Recombinant SARS-CoV-2 S2 Subunit Protein with C-terminal tag, derived from the transfected human HEK293 cells.
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Recombinant Universal Nuclease Recombinant universal nuclease affinity-purified from E. coli with high endonuclease activity. Tolerates high concentrations of urea, which is commonly used for insoluble protein solubilization and purifications. Degrades all forms of DNA and RNA.
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Recombinant Monkeypox Virus Cell Surface-binding Protein, E8L Recombinant monkeypox virus (MPXV) cell surface-binding protein E8L with C-terminal His-tag, derived from E.coli.
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Recombinant Monkeypox Virus Palmytilated EEV Membrane Glycoprotein, C19L Recombinant monkeypox virus palmytilated EEV membrane glycoprotein (C19L) with an N-terminal His-tag, derived from E.coli. Monkeypox virus C19L is equivalent to vaccinia virus F13L.
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Recombinant Monkeypox Virus Secreted IL-18 Binding Protein D6L Recombinant monkeypox virus secreted IL-18 binding protein (D6L) with an N-terminal His-tag, derived from E.coli.
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Recombinant Monkeypox Virus IFN-alpha/beta receptor-like Secreted Glycoprotein, B16R Recombinant monkeypox virus IFN-alpha/beta-receptor-like secreted glycoprotein (B16R) with an N-terminal His-tag, derived from E.coli.
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Recombinant Monkeypox Virus Envelope Protein H3L Recombinant monkeypox virus envelope protein H3L with an N-terminal His-tag, derived from E.coli.
What customers are saying
“It [Recombinant SARS-CoV-2 Nucleocapsid Protein, Biotinylated, Cat# 230-30164] works well for fluorescent labeling and confocal microscopy.”
Graduate student
University of California, Davis
“I ordered the item [Tumor Necrosis Factor-Alpha, Human Recombinant, Cat# 228-11521] many times to use in different studies and it gives me great data”
Samia
Florida A&M University
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Protein Expression and Purification Services to Meet Your Specifications
Our comprehensive Custom Protein Services cover every step of production, from gene cloning through protein purification. We also perform downstream processing including protein desalting, lyophilization, vialing, and labeling.
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Frequently Asked Questions
Still have questions?
Native proteins are proteins in their natural form, extracted from their natural source.
A recombinant protein is a modified version of a native protein produced to increase protein production or modify gene sequences.
Competitive Inhibition: Competitive enzyme inhibitors compete with substrates for the enzyme's active site. Because fewer substrate molecules can bind to the enzyme, the reaction rate is decreased.
Non-Competitive Inhibition: Non-competitive enzyme inhibitors bind to sites other than the enzyme's active site. This is called an allosteric site.
Uncompetitive Inhibition: Uncompetitive inhibitors cannot bind to free enzymes. Instead, it binds to enzyme-substrate complexes to form an inactive enzyme-substrate complex. This type of inhibition is rare.
A growth factor is a naturally occurring group of proteins that stimulate cell proliferation and the growth of specific tissues. The term “growth factor” includes peptides that stimulate or inhibit the progression of cells through mitosis.
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