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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 1100-1150 of 10000 product results
African Swine Fever Virus P72, Recombinant Protein (Cat# AAA39181)
Hepatitis C Virus NS3 Genotype-1b, Recombinant Protein (Cat# AAA38302)
Purified by proprietary chromatographic technique.
Hepatitis C Virus NS5 Genotype-3, Recombinant Protein (Cat# AAA38309)
HCV NS5 Genotype-3 protein was purified by proprietary chromatographic technique.
Hepatitis C Virus NS3, Recombinant Protein (Cat# AAA38317)
HCV NS3, HRP protein was purified by proprietary chromatographic technique.
HIV-1 pol Integrase, Recombinant Protein (Cat# AAA38335)
HIV-1 nef, Recombinant Protein (Cat# AAA38336)
SDS-PAGE
(MyD88 Fragment Recombinant Protein)
MyD88, Recombinant Protein (Cat# AAA40473)
ELISA
(Figure 4 ELISA Validation of Omicron Variant Spike S1 Protein with SARS-CoV-2 Spike S1 Antibodies Coating Antigen: SARS-CoV-2 spike S1 proteins, including WT and Omicron variant (B.1.1.529), 5 ug/mL, incubated at 4°C overnight. Detection Antibodies: SARS-CoV-2 Spike S1 antibody, dilution: 0.3-1000 ng/mL, incubated at RT for 1 hr.Secondary Antibodies: Goat anti-rabbit HRP at 1:20,000, incubate at RT for 1 hr. Antibody does not distinguish between WT and Omicron.)
COVID 19 Omicron Variant Spike S1 (His-Avi Tag) Coronavirus, Recombinant Protein (Cat# AAA40962)
SDS-PAGE
(SDS PAGE for recombinant ASFV p72/B646L Protein)
ASFV B646L, Recombinant Protein (Cat# AAA41034)
P-Selectin, Recombinant Protein (Cat# AAA38464)
Ku P70/P80, Recombinant Protein (Cat# AAA38473)
Small Nuclear Ribonucleoprotein, Recombinant Protein (Cat# AAA38496)
BAD, Recombinant Protein (Cat# AAA38500)
BP-1, Recombinant Protein (Cat# AAA38501)
Haptoglobin, Recombinant Protein (Cat# AAA38516)
Rubella Virus E1 Mosaic, Recombinant Protein (Cat# AAA38525)
Rubella protein was purified by proprietary chromatographic technique.
SARS Associated Coronavirus Nucleocaspid, Recombinant Protein (Cat# AAA38531)
SARS Core protein was purified by proprietary chromatographic technique.
Toxoplasma Gondii P29, Recombinant Protein (Cat# AAA38540)
Hemagglutinin-Influenza A Virus H7N7 Netherlands 219/03, Recombinant Protein (Cat# AAA38378)
TROVE Domain Family, Recombinant Protein (Cat# AAA38433)
General Transcription Factor IIB, Recombinant Protein (Cat# AAA38745)
Malic Enzyme 2, Recombinant Protein (Cat# AAA38613)
Dihydrolipoamide S-Succinyltransferase, Recombinant Protein (Cat# AAA38897)
1F8 Chagas, Recombinant Protein (Cat# AAA38905)
Chromodomain Helicase DNA Binding Protein 4, Recombinant Protein (Cat# AAA38931)
ABO Blood Group, Recombinant Protein (Cat# AAA38964)
Fibroblast Growth Factor-basic, Recombinant Protein (Cat# AAA38969)
SDS-PAGE
(Purity: Sample Purity Data. For specific information on a given lot, see related technical data sheet.)
COVID 19 Spike S1 (T19R, G142D, del157-158, L452R, T478K, D614G, P681R) Coronavirus, Recombinant Protein (Cat# AAA73329)
SDS-PAGE
(Purity: Sample Purity Data. For specific information on a given lot, see related technical data sheet.)
WB (Western Blot)
(Western blot assay for Recombinant Mononucleosomes H3.1 (K27M) 2 ug Recombinant Mononucleosomes H3.1 (K27M) were incubated with 0 or 100 nM PRC2 respectively in reaction buffer containing 50 mM Tris-HCl pH 8.6, 0.02% Triton X-100, 2 mM MgCl2, 1 mM TCEP and 50 ?M SAM for 3 hr at room temperature. Half of the reactions were run on a 12.5% SDS-PAGE gel and detected with anti-H3K27me1 antibody . Mononucleosomes H3.1 were used as a control. The Western Blot result shows that only the H3K27 of mononucleosomes H3.1 can be methylated by PRC2.)
Mononucleosomes H3.1, Recombinant Protein (Cat# AAA60186)
SDS-PAGE
(Streptavidin pull down assay for Recombinant Mononucleosomes H3.3 (K9M) – biotin 24 ug biotinylated mononucleosomes were incubated with 10 ul streptavidin beads for 1 hr at 4 degree C. Streptavidin beads were washed 3 times with 1 ml binding buffer. The beads were added 60 ul 2×SDS loading buffer and boiled for 10 min at 95 degree C. 2.4 ul samples were loaded and run on a 12.5% SDS-PAGE gel stained with Coomassie blue. The SDS-PAGE gel shows that almost all of the biotinylated mononucleosomes were pulled down by streptavidin beads.)
Mononucleosomes H3.3, Recombinant Protein (Cat# AAA60219)
SDS-PAGE
(SDS-PAGE: Purified HA (A/Singapore/INFIMH-16-0019/2016/H3N2)-like virus protein)
HA, Recombinant Protein (Cat# AAA62080)
SDS-PAGE
(Purified HMPV fusion glycoprotein)
Post Fusion F-Protein of Human Metapneumovirus (HMPV), Recombinant Protein (Cat# AAA62267)
SDS-PAGE
(SDS-PAGE: purified glycoprotein C (HSV-2) protein)
HSV-2 Glycoprotein C (gC), Recombinant Protein (Cat# AAA62087)
Application Data
(E: purified HIV-1 gp120 (Clade C) protein)
gp120 (HIV-1/Clade C), Recombinant Protein (Cat# AAA62167)
Application Data
(in vitro expressed and purified HBsAg adr protein)
HBsAg adr, Recombinant Protein (Cat# AAA62189)
Purified by proprietary chromatographic technique
SDS-PAGE
(purified SIV gp120 protein (isolate SIVmac251v31523ru28))
SIV gp120, Recombinant Protein (Cat# AAA62207)
Application Data
GP Protein, Recombinant Protein (Cat# AAA62211)
HBV X, Recombinant Protein (Cat# AAA62213)
SDS-PAGE
mCherry, Recombinant Protein (Cat# AAA55961)
SDS-PAGE
KRAS, Recombinant Protein (Cat# AAA55968)
SDS-PAGE
Inhibin Beta B, Recombinant Protein (Cat# AAA55772)
Affinity purification
Hepatitis B Core Antigen (HBcAg) (a.a. 1-144) 14kDa Recombinant, Recombinant Protein (Cat# AAA58320)
M. tuberculosis CFP10, Recombinant Protein (Cat# AAA58392)
SDS-PAGE
(Figure 1.Human EPCAM Protein, His Tag on SDS-PAGE under reducing condition.)
EPCAM, Recombinant Protein (Cat# AAA47233)
SDS-PAGE
(Figure 1. Human IL17RA Protein, His Tag on SDS-PAGE under reducing condition.)
IL17RA, Recombinant Protein (Cat# AAA47263)
Application Data
(Biotinylated Human LILRA5/CD85f/ILT11 Protein SEC-HPLCThe purity of Biotinylated Human LILRA5 is greater than 95% as determined by SEC-HPLC.)
LILRA5/CD85f/ILT11, Recombinant Protein (Cat# AAA76351)
WB (Western Blot)
(Figure 3: Western Blot analysis of S1-RBD antibody: Anti-S1-RBD antibody (SARS-CoV-2) was used at 2ug/ml on Recombinant Sars-Cov-2 Spike RBD Protein Fc Tag (319-541 aa) (21-1005).)
COVID 19 Spike RBD Coronavirus, Recombinant Protein (Cat# AAA78552)
SDS-PAGE
(SDS-PAGE)
Anoctamin 1 (ANO1), Recombinant Protein (Cat# AAA151041)
SDS-PAGE
(SDS-PAGE)
Large T Antigen (LT), Recombinant Protein (Cat# AAA152249)
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.