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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.
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.
Viewing 1100-1150 of 15249 product results
Application Data
(Immobilized Human Fc-gamma RIIa( CD32a) at 1ug/mL (100 uL/well) can bind IgG1 Fc with a linear range of 0.156-3.47ug/mL.)
IgG1, Recombinant Protein (Cat# AAA282615)
Application Data
(Immobilized recombinant Human CDH1 at 1 ug/mL (100 uL/well) can bind Human CTNNB1 with a linear range of 0.1-0.78ug/mL.)
CDH1/E-Cadherin/CD324, Recombinant Protein (Cat# AAA282511)
Application Data
(Immobilized Mouse CD24 (#AAA282522) at 2 ug/mL (100 uL/well) can bind Human Siglec10 with a linear range of 40-900ng/mL.)
CD24, Recombinant Protein (Cat# AAA282522)
Application Data
(Recombinant Mouse PPIase A/PPIA Protein was determined by SDS-PAGE with Coomassie Blue, showing bands at 15-25 kDa.)
PPIase A/PPIA, Recombinant Protein (Cat# AAA282575)
Claudin-3 (Cldn3), Recombinant Protein (Cat# AAA233620)
Polypeptide N-acetylgalactosaminyltransferase 10 (Galnt10), Recombinant Protein (Cat# AAA233572)
Insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3), Recombinant Protein (Cat# AAA115265)
DNA topoisomerase 1B (TOP1), Recombinant Protein (Cat# AAA114879)
Ubiquitin-conjugating enzyme E2 11 (UBC11), Recombinant Protein (Cat# AAA115928)
C-Jun-amino-terminal kinase-interacting protein 4 (SPAG9), Recombinant Protein (Cat# AAA115628)
Putative ATP-dependent RNA helicase Pl10 (D1Pas1), Recombinant Protein (Cat# AAA115823)
Envelope glycoprotein I (gI), Recombinant Protein (Cat# AAA115828)
SDS-PAGE
Neurofilament, Light Polypeptide (NEFL), Recombinant Protein (Cat# AAA134176)
Desmoglein-1-alpha (Dsg1a), Recombinant Protein (Cat# AAA117375)
Sushi domain-containing protein 4 (Susd4), Recombinant Protein (Cat# AAA117443)
Synaptogyrin-4 (SYNGR4), Recombinant Protein (Cat# AAA114546)
Extracellular serine/threonine protein kinase FAM20C (Fam20c), Recombinant Protein (Cat# AAA117637)
Homeobox protein CDX-1 (CDX1), Recombinant Protein (Cat# AAA113827)
Heterogeneous nuclear ribonucleoprotein A3 (HNRNPA3), Recombinant Protein (Cat# AAA113997)
Application Data
(Immobilized recombinant Human FGF2 at 1 ug/mL (100 uL/well) can bind Human Glypican 1 with a linear range of 2-80ng/mL.)
Glypican 1, Recombinant Protein (Cat# AAA281518)
Application Data
(Immobilized Human ACE2 on COOH Chip, can bind 2019-nCoV Spike S1 with an affinity constant of 90.8 nM as determined in a SPR assay (Nicoya OpenSPR).)
COVID 19 Spike S1 Protein Coronavirus, Recombinant Protein (Cat# AAA281523)
Application Data
(Immobilized Mouse CD276 (#AAA282592) at 2 ug/mL (100 uL/well) can bind CD276 Rabbit pAb with a linear range of 1-77.4 ng/mL.Immobilized Mouse CD276)
CD276, Recombinant Protein (Cat# AAA282592)
SDS-PAGE
(Recombinant Human NF-L/NEFL Protein was determined by SDS-PAGE with Coomassie Blue, showing a band at 28 kDa.)
NF-L/NEFL, Recombinant Protein (Cat# AAA282560)
Application Data
(Immobilized Mouse CD47 at 2 ug/mL (100 uL/well) can bind Mouse CD172a (#AAA282578) with a linear range of 1.2-55.3 ng/mL.)
SIRP-alpha/CD172a, Recombinant Protein (Cat# AAA282578)
SDS-PAGE
((Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.)
Cell surface mannoprotein MP65 (MP65), Recombinant Protein (Cat# AAA279286)
Sortase A (srtA), Recombinant Protein (Cat# AAA278930)
Application Data
(Recombinant Human IL-9 Protein promote the proliferation of M07e human megakaryocytic leukemic cells. The ED50 for this effect is 0.28-1.12 ng/mL, corresponding to a specific activity of 8.9×10<sup>5</sup>~3.6×10<sup>6</sup> units/mg.)
Application Data
(Recombinant Human/Mouse/Rat mature BMP-2 Protein induce alkaline phosphatase production by ATDC5 mouse chondrogenic cells.The ED<sub>50</sub> for this effect is 24.59-98.36 ng/mL, corresponding to a specific activity of 1.02×10<sup>4</sup>~4.07×10<sup>4</sup> units/mg.)
BMP-2, Recombinant Protein (Cat# AAA283377)
Application Data
(Immobilized Human CRTAM, His Tag at 0.5ug/ml (100ul/Well) on the plate. Dose response curve for Anti-CRTAM Antibody, hFc Tag with the EC<sub>50</sub> of 57.3ng/ml determined by ELISA.)
CRTAM/CD355 (A65V), Recombinant Protein (Cat# AAA283403)
Application Data
(The purity of Mouse LRG1 is greater than 95% as determined by SEC-HPLC.)
LRG1, Recombinant Protein (Cat# AAA283404)
Fusion glycoprotein F0 (F), Recombinant Protein (Cat# AAA230857)
Application Data
(Loaded Anti-COVID-19 S1 mAb on Protein A Biosensor, can bind Recombinant COVID-19 S-trimer Protein (Omicron, BA.2) with an affinity constant of 4.87 nM as determined in bioactivity assay.)
COVID-19 S-trimer, Recombinant Protein (Cat# AAA266231)
Influenza A virus Polymerase acidic protein (PA), Recombinant Protein (Cat# AAA235213)
TREM1, Recombinant Protein (Cat# AAA263298)
COVID 19 Spike S1+S2 ECD Coronavirus, Recombinant Protein (Cat# AAA268878)
Purification : Ni column
Glutamate carboxypeptidase 2 (FOLH1), Recombinant Protein (Cat# AAA113455)
Odorant-binding protein, Recombinant Protein (Cat# AAA114728)
Hemolysin (hpmA), partial, Recombinant Protein (Cat# AAA114745)
Small proline-rich protein 2B (Sprr2b), Recombinant Protein (Cat# AAA114629)
Phthalate 4,5-dioxygenase oxygenase subunit (pht3), Recombinant Protein (Cat# AAA114493)
Serine protease splE (splE), Recombinant Protein (Cat# AAA114511)
3-oxosteroid 1-dehydrogenase (ksdD), Recombinant Protein (Cat# AAA116052)
Small heat shock protein ibpB (ibpB), Recombinant Protein (Cat# AAA115582)
Immunoglobulin G-binding protein A (spa), Recombinant Protein (Cat# AAA116016)
Interleukin-18 (Il18), Recombinant Protein (Cat# AAA114050)
Major centromere autoantigen B (CENPB), Recombinant Protein (Cat# AAA114088)
CUB and zona pellucida-like domain-containing protein 1 (CUZD1), Recombinant Protein (Cat# AAA116692)
Atrial natriuretic peptide receptor 2 (Npr2), Recombinant Protein (Cat# AAA117440)
Application Data
(Immobilized SARS-CoV-2 Envelope at 2 ug/mL (100 uL/well) can bind SARS-COV-2 Nucleocapsid with a linear range of 0.01-30 ng/mL.)
SARS-COV-2 Nucleocapsid (D63G, R203M, D377Y), Recombinant Protein (Cat# AAA282535)
Application Data
(Recombinant Mouse IL-13 stimulates cell proliferation of the TF-1 Mouse erythroleukemic cells. The ED50 for this effect is 23.9-95.6 ng/mL.)
IL-13, Recombinant Protein (Cat# AAA282570)
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. Learn more in our guide on “factors affecting recombinant protein yield”.
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)
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, often supported by high-quality ELISA kits for accurate quantification.
- 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.