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▼Recombinant Proteins
Recombinant proteins are purified laboratory reagents created through genetic engineering for advanced biomedical research, such as immunology, neuroscience, cancer research, and more.
At AAA Biotech, also known as AAA Bio or AAABio, we provide high-quality recombinant proteins. Our various protein products are carefully tested for consistent and reliable performance. With our proteins, we offer stringent quality control, lot-to-lot consistency, and precise specificity to help you achieve accurate results in your research.
Whether you're conducting research on cell expansion, polarization, differentiation, or cell processing, we can offer the exact recombinant proteins you need in order to support your work.
Viewing 5500-5550 of 14163 product results
HIV-I transmembrane glycoprotein gp41, Recombinant Protein (Cat# AAA76062)
HIV-1 gp120, Recombinant Protein (Cat# AAA76097)
Application Data
COVID 19 Spike S Coronavirus, Recombinant Protein (Cat# AAA76123)
ELISA
(Biotinylated Human B7-2/CD86 Protein ELISA DataImmobilized Biotinylated Human B7-2, His Tag at 0.5?g/ml (100?l/Well) on the plate. Dose response curve for Human CTLA-4, hFc Tag with the EC50 of 0.2?g/ml determined by ELISA.)
B7-2/CD86, Recombinant Protein (Cat# AAA76354)
Application Data
(Biotinylated Human PD-1/PDCD1 Protein SPR DataHuman PD-L1, hFc Tag captured on CM5 Chip via Protein A can bind Biotinylated Human PD-1, His-Avi Tag with an affinity constant of 2.356 ?M as determined in SPR assay (Biacore T200).)
PD-1/PDCD1, Recombinant Protein (Cat# AAA76292)
ELISA
(Biotinylated Human IL-18BP Protein ELISA DataImmobilized Human IL-18 at 2?g/ml (100?l/well) on the plate. Dose response curve for Biotinylated Human IL-18BP, His Tag with the EC50 of 6.1ng/ml determined by ELISA.)
IL-18BP, Recombinant Protein (Cat# AAA76223)
ELISA
(Biotinylated Human LILRB3/CD85a/ILT5 Protein ELISA DataImmobilized Biotinylated Human LILRB3, His Tag at 2?g/ml (100?l/well) on the streptavidin precoated plate (5?g/ml). Dose response curve for Anti-LILRB3 Antibody, hFc Tag with the EC50 of 3.6ng/ml determined by ELISA.)
LILRB3/CD85a/ILT5, Recombinant Protein (Cat# AAA76239)
ELISA
(Biotinylated Human IL-2 R alpha/CD25 Protein ELISA DataImmobilized Anti-CD25 Antibody, hFc Tag at 0.2?g/ml (100?l/well) on the plate. Dose response curve for Biotinylated Human IL-2 R alpha, His Tag with the EC50 of 11.9ng/ml determined by ELISA.)
IL-2 R alpha/CD25, Recombinant Protein (Cat# AAA76252)
Application Data
(Biotinylated Human EGFR/HER1 Protein SPR DataBiotinylated Human EGFR, His-Avi Tag captured on CM5 Chip via Anti-his antibody can bind Human EGF, No Tag with an affinity constant of 0.64 nM as determined in SPR assay (Biacore T200).)
EGFR/HER1, Recombinant Protein (Cat# AAA76154)
P26, Recombinant Protein (Cat# AAA78021)
SDS-PAGE
HPV 16, Recombinant Protein (Cat# AAA78023)
Application Data
(Figure-2: Comparative binding of Spike S1 variants to sACE2: Wells of a 96-well microtiter plate were coated with 100 ng in duplicates each of S1-WT, S1-N439K, S1-D614G, S1-South Africa, and S1-Southern California. Binding to sACE2 was determined by adding different concentrations of biotinylated-sACE2.)
SARS-CoV-2 Spike S1 Mutant Sampler Set, Recombinant Protein (Cat# AAA78598)
6-PGDH, Recombinant Protein (Cat# AAA78985)
COVID 19 Spike Protein E-Mosaic Coronavirus, Recombinant Protein (Cat# AAA78515)
Application Data
(Figure-2: Wells of a 96-microtiter plate were coated with 4ug/ml of SARS-Cov-2/nCov/COVID-19 Nucleocapsid recombinant protein. The binding was detected by addition of different dilution of polyclonal antibody. The reactivity was detected by a HRP-conjugated goat-anti-rabbit polyclonal antibody.)
COVID 19 Nucleocapsid (NP) Coronavirus, Recombinant Protein (Cat# AAA78527)
Application Data
(Figure 2: Binding assay of recombinant SARS CoV-2 Spike S1 C-Term His Tag Protein with recombinant Human ACE2 Fc Protein. An ELISA plate was coated with 1ug/ml of recombinant SARS CoV-2 Spike S1 C-Term His Tag Protein, and the plate was incubated overnight at 4 degree C. Different concentrations (100 ng/well to 0 ng/well) of recombinant Human ACE2 Fc Protein was added to the wells. HRP conjugated goat anti-human Fc was used as secondary antibody.)
COVID 19 Spike S1 Coronavirus, Recombinant Protein (Cat# AAA78555)
Application Data
(SDS-PAGE analysis of recombinant mouse soluble Podoplanin. Sample was loaded in 15% SDS-polyacrylamide gel under reducing conditions and stained with Silver stain.)
Podoplanin, soluble, Recombinant Protein (Cat# AAA79189)
COVID 19 Nucleocapsid (NP) Coronavirus, Recombinant Protein (Cat# AAA226284)
WEST NILE VIRUS, Recombinant Protein (Cat# AAA50546)
SDS-PAGE
(SDS-PAGE)
Neutrophil gelatinase-associated lipocalin (NGAL), Recombinant Protein (Cat# AAA152132)
SDS-PAGE
(SDS-PAGE)
Alanine Aminopeptidase (AAP), Recombinant Protein (Cat# AAA152137)
SDS-PAGE
(SDS-PAGE)
Acid Sphingomyelinase (ASM), Recombinant Protein (Cat# AAA152145)
SDS-PAGE
(SDS-PAGE)
Erythropoietin (EPO), Recombinant Protein (Cat# AAA152040)
SDS-PAGE
(SDS-PAGE)
SPARC Like Protein 1 (SPARCL1), Recombinant Protein (Cat# AAA151979)
SDS-PAGE
(SDS-PAGE)
Epigen (EPG), Recombinant Protein (Cat# AAA151102)
SDS-PAGE
Complement Component 3c (C3c), Recombinant Protein (Cat# AAA151113)
SDS-PAGE
(SDS-PAGE)
Meprin A Alpha (MEP1a), Recombinant Protein (Cat# AAA151005)
SDS-PAGE
(SDS-PAGE)
Fatty Acid Binding Protein 8, Myelin (FABP8), Recombinant Protein (Cat# AAA151006)
SDS-PAGE
(SDS-PAGE)
Prolactin (PRL), Recombinant Protein (Cat# AAA151029)
SDS-PAGE
(SDS-PAGE)
Glutathione S Transferase Pi (GSTp), Recombinant Protein (Cat# AAA151034)
SDS-PAGE
(SDS-PAGE)
Macrophage Stimulating Protein (MSP), Recombinant Protein (Cat# AAA151035)
SDS-PAGE
(SDS-PAGE)
Angiotensin I Converting Enzyme 2 (ACE2), Recombinant Protein (Cat# AAA151055)
SDS-PAGE
(SDS-PAGE)
Protamine 2 (PRM2), Recombinant Protein (Cat# AAA151085)
SDS-PAGE
(Figure. SDS-PAGE)
Interleukin 4 (IL4), Recombinant Protein (Cat# AAA150655)
SDS-PAGE
(Figure. SDS-PAGE)
Plasminogen Activator, Urokinase (uPA), Recombinant Protein (Cat# AAA150660)
SDS-PAGE
(Figure. SDS-PAGE)
Interferon Beta (IFNb), Recombinant Protein (Cat# AAA150662)
SDS-PAGE
(Figure. SDS-PAGE)
Heparanase (HPSE), Recombinant Protein (Cat# AAA150674)
SDS-PAGE
(Figure. SDS-PAGE)
Cyclin Dependent Kinase 5 (CDK5), Recombinant Protein (Cat# AAA150675)
SDS-PAGE
(Figure. SDS-PAGE)
Procollagen II C-Terminal Propeptide (PIICP), Recombinant Protein (Cat# AAA150683)
SDS-PAGE
(Figure. SDS-PAGE)
Angiopoietin Like Protein 4 (ANGPTL4), Recombinant Protein (Cat# AAA150684)
Amino Acid Info
(Amino Acid info)
Cholinergic Receptor, Muscarinic 2 (CHRM2), Recombinant Protein (Cat# AAA153433)
Amino Acid Info
Plasminogen (Plg), Recombinant Protein (Cat# AAA153439)
Amino Acid Info
(Amino Acid info)
Cluster Of Differentiation 99 (CD99), Recombinant Protein (Cat# AAA153449)
Amino Acid Info
Relaxin/Insulin Like Family Peptide Receptor 1 (RXFP1), Recombinant Protein (Cat# AAA153450)
Amino Acid Info
Caspase 1 (CASP1), Recombinant Protein (Cat# AAA153454)
Amino Acid Info
Surfactant Protein B (SP-B), Recombinant Protein (Cat# AAA153462)
Amino Acid Info
Interleukin 17B (IL17B), Recombinant Protein (Cat# AAA153469)
Amino Acid Info
Phospholipid Scramblase 1 (PLSCR1), Recombinant Protein (Cat# AAA153477)
Amino Acid Info
Vascular Endothelial Growth Factor Receptor 1 (VEGFR1), Recombinant Protein (Cat# AAA153479)
Amino Acid Info
(Amino Acid info)
Cluster Of Differentiation 3d (CD3d), Recombinant Protein (Cat# AAA153482)
What Are Recombinant Proteins?
A recombinant protein is created by inserting the gene of interest into a host system like E. coli, mammalian cells, or insect cells. This protein expression method results in the large-scale production of protein in a controlled environment with highly precise structures and functionality. Proteins produced via the “Recombinant” methodology have proven themselves crucial in various biological research areas, including immunology, neuroscience, cancer research, drug delivery and development, and more.
Core Recombinant Protein Product Lines:
- Human: Produced from human genes (e.g., growth factors, cytokines).
- Animal: Derived from mouse, rat, or other animals (e.g., mouse antibodies, enzymes).
- Bacterial: Produced in bacteria like E. coli (e.g., enzymes, bacterial toxins).
- Yeast: Produced in yeast cells (e.g., surface proteins, metabolic enzymes).
- Insect:Expressed in insect cells (e.g., viral proteins, glycoproteins).
- Viral: Derived from viral genomes (e.g., spike proteins for vaccine development).
How Does It Work?
- Gene Identification and Cloning: Scientists first find the exact gene that codes for the protein they are interested in producing, and then create a copy of said gene.
- Recombinant DNA Creation: The copied gene is then inserted into a vector (a vehicle-like plasmid) that can be transported safely into your intended expression host cell/system.
- Host Cell Transformation: The vector (with the foreign gene inside) is shuttled into a host cell. This host can be a bacterium (like E. coli), yeast, insect cells, or mammalian cells, depending on the type of protein or protein characteristics needed.
- Protein Expression:The host cell “reads” the copied gene that was shuttled into it, and begins to produce the gene’s coded-for protein using its own cellular machinery. The host can continue to multiply, and with each new cell, more protein is produced.
- Protein Purification:After enough protein has been made, scientists collect the host cell and separate out the target protein. The protein is then carefully purified so it is free of contaminants, ideally active, and also safe for use.
The result is a purified recombinant protein — a lab-made protein that is biologically identical (in most respects) to the natural/native version.
We take this process a step further, offering recombinant proteins that are produced with precise control over sequence modifications, expression levels, and large-scale production. This ensures high-quality, consistent results that will be able to support your research needs and empower your scientific discoveries.
Some of the expression hosts/systems used in recombinant protein generation by AAA Biotech include:
- Escherichia coli (E. coli)
- Human (Homo sapiens)
- Chinese Hamster
- Yeast
- Insect cells (e.g., Baculovirus expression system)
Advantages Of Our Recombinant Proteins:
Recombinant Protein Offerings
| S.No | Protein Expression Systems | Quality and Bioactivity | Formats and Flexibility |
|---|---|---|---|
| 01. | E. coli, HEK293, CHO, yeast, and insect cells | Validated high bioactivity and binding activity | Ready-to-use formats (lyophilized or liquid formulations available) |
| 02. | 675+ recombinant protein products | High protein purity (≥95%) | Available in flexible pack sizes |
| 03. | Custom protein production (His-tag, GST, FLAG, and Fc fusion) | Lot-to-lot consistency through QC protocols | Wide range of targets (Cytokines, growth factors, enzymes, receptors, signaling proteins, etc.) |
Applications Of Our Recombinant Proteins
- Studying protein interactions (protein–protein or protein–DNA).
- Testing biological pathways with functional/activity assays.
- Creating standard curves in ELISA and other tests.
- Making antigens/immunogens for antibody production.
- Drug discovery and screening.
- Finding and confirming biomarkers.
- Researching cell signaling and immunity.
- Developing vaccines.
Read more about the applications of the recombinant proteins here!
Why Buy Recombinant Proteins from AAA Biotech?
1. High Purity & Verified Quality:
Most of our proteins are ≥ 95% pure. We also test the biological activity of our products where it's relevant (it will be indicated on the product page).
2. Multiple Expression Systems:
We offer proteins made in multiple host systems, and this enables researchers to pick the system that gives them the best folding, post-translational modifications, or functionality for their experiment requirements.
3. Custom & Flexible Options:
Need a special tag (His, GST, FLAG, Fc fusion)? Or a custom variant? We can provide it. Our proteins come in formats that are lab-friendly: lyophilized (dry) or “ready-to-use” liquid.
4. Rigorous Quality Control & Documentation:
Every batch is backed by strong QC. This means you can rely on product consistency — two different batches will perform similarly.
5. Wide Variety & Global Availability:
We carry a large and growing catalog of recombinant proteins to cover almost all needs in research (immunology, oncology, vaccine work, etc.)
6. Researcher-Focused Support:
Technical support, clear documentation, and user-friendly product pages help you select the right protein for your work. Plus, our user-friendly packaging and handling, and global shipping are all designed to reduce delays, damage, and hassles.
Order Recombinant Proteins Today!
We are committed to supporting the research community with recombinant proteins that display exceptional performance and reliability. Our proteins are produced using industry-standard methods and are validated to meet the needs of academic, pharmaceutical, and biotechnology laboratories.
We have a track record of delivering proteins that work — large numbers of researchers rely on them in many published studies. Browse our catalog to find the perfect protein for your research applications now!
FAQ
1. What is involved in the purification of recombinant proteins?
The purification process of these recombinant proteins is performed to isolate the specific protein produced by the host cell from unwanted substances. The process generally includes techniques such as “affinity chromatography” to separate the protein from other proteins and impurities. AAA Biotech generally offers proteins ≥ 95% pure, depending on the protein type.
2. What are some examples of popular AAA Biotech recombinant proteins?
Some examples of recombinant proteins include:
Retinoblastoma Protein (Cat # AAA10852) – reportedly used in vaccine research and antibody development. Hepatitis B Surface Antigen (HBsAg) (Cat# AAA13446) – reportedly used in diagnostic tests and vaccine development for Hepatitis B. High-Mobility Group Box 1 (HMGB1) (Cat# AAA10851) – reportedly used in inflammation and immune response research.
3. How are AAA Biotech recombinant proteins validated?
Each batch undergoes stringent quality control checks, including SDS-PAGE analysis, endotoxin testing (for select products), and activity assaying (for select products). Certificates of Analysis are provided with every product (only upon request for some products).
4. Are your proteins suitable for therapeutic development or only research?
AAA Biotech recombinant proteins are strictly for research-use only and are not intended for diagnostic or therapeutic purposes in humans or animals.
5. What types of expression systems do you use for recombinant protein production?
The production labs use a variety of expression platforms, including bacterial (E. coli), yeast, insect (baculovirus), and mammalian (HEK293, CHO) systems. The expression system used depends on the complexity and intended function/use of the protein.