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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 4850-4900 of 14163 product results
Ribonuclease 4 (RNASE4), Recombinant Protein (Cat# AAA81691)
Guanine nucleotide-binding protein subunit alpha-12 (Gna12), Recombinant Protein (Cat# AAA81704)
Application Data
(HTRF assay for MBD2-MBD activity 1uM substrate DNA (5’-Biotin-GCAGCCGG/5mC/GCGAATC-3’) were incubated with different concentrations of MBD2-MBD protein in HTRF binding buffer contain 50mM HEPES-NaOH pH 7.4,0.1%BSA for 1 hour, Then 10ul detection reagents contain anti-His antibody (1:100) and SA-XL665 (1:100) diluted with 1× Detection Buffer were added and incubated for 30 min. All the operations and reactions were performed at room temperature. HTRF assay was used for detection.)
Application Data
(HTRF assay for MBD4-MBD activity 1uM substrate DNA (5’-Biotin-GCAGCCGG/5mC/GCGAATC-3’) were incubated with different concentrations of MBD4-MBD protein in HTRF binding buffer contain 50mM HEPES-NaOH pH 7.4,0.1%BSA for 1 hour, Then 10ul detection reagents contain anti-His antibody (1:100) and SA-XL665 (1:100) diluted with 1× Detection Buffer were added and incubated for 30 min. All the operations and reactions were performed at room temperature. HTRF assay was used for detection.)
Application Data
(AMP-Glo assay for UBE2A activity 7.9uM ubiquitin, 63 nM UBA1 and 25uM ATP were incubated with different concentrations of UBE2A in 10ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 0.5 mM DTT, 0.1 mg/ml BSA at 3 degree C for 1 hour. 10ul of AMP-Glo Reagent I was added to the reaction and incubated for 1 hour at room temperature. Then 20ul of AMP-Glo Detection Solution was added and luminescence was read after another 30 min incubation.)
UBE2A, Recombinant Protein (Cat# AAA60379)
Application Data
(AMP-Glo assay for UBE2E1 activity 7.9uM ubiquitin,63 nM UBA1 and 25uM ATP were incubated with different concentrations of UBE2E1 in 10ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 0.5 mM DTT, 0.1 mg/ml BSA at 3 degree C for 1 hour. 10ul of AMP-Glo Reagent I was added to the reaction and incubated for 1 hour at room temperature. Then 20ul of AMP-Glo Detection Solution was added and luminescence was read after another 30 min incubation.)
UBE2E1, Recombinant Protein (Cat# AAA60381)
Application Data
(HTRF assay for Recombinant NTRK1 (440-796, F589L) activity 1uM TK substrate was incubated with different concentrations of NTRK1 (440-796, F589L) protein in 10ul reaction system containing 1×Enzymatic Buffer, 5 mM MgCl2, 1 mM DTT and 100uM ATP for 1 hour. Then 10ul detection reagents containing anti-TK antibody (1:2) and SA-XL665 (1:100) diluted with 1× Detection Buffer were added and incubated with the reactions for 30 min. All the operations and reactions were performed at room temperature. HTRF assay was used for detection.)
NTRK1, Recombinant Protein (Cat# AAA60384)
Application Data
(HTRF assay for NTRK1 (440-796, A608D) activity 1uM TK substrate was incubated with different concentrations of NTRK1 (440-796, A608D) protein in 10ul reaction system containing 1×Enzymatic Buffer, 5 mM MgCl2, 1 mM DTT and 100uM ATP for 1 hour. Then 10ul detection reagents containing anti-TK antibody (1:2) and SA-XL665 (1:100) diluted with 1× Detection Buffer were added and incubated with the reactions for 30 min. All the operations and reactions were performed at room temperature. HTRF assay was used for detection.)
NTRK1, Recombinant Protein (Cat# AAA60386)
Application Data
(AMP-Glo assay for UBE2R2 activity 7.9uM ubiquitin, 63 nM UBA1 and 25uM ATP were incubated with different concentrations of UBE2R2 in 10ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 0.5 mM DTT, 0.1 mg/ml BSA at 37? for 1 hour. 10ul of AMP-Glo Reagent I was added to the reaction and incubated for 1 hour at room temperature. Then 20ul of AMP-Glo Detection Solution was added and luminescence was read after another 30 min incubation.)
UBE2R2, Recombinant Protein (Cat# AAA60396)
Application Data
(AMP-Glo assay for UBA1 activity 7.9uM ubiquitin and 25uM ATP were incubated with different concentrations of UBA1 in 10ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 0.5 mM DTT, 0.1 mg/ml BSA at 37? for 1 hour. 10ul of AMP-Glo Reagent I was added to the reaction and incubated for 1 hour at room temperature. Then 20ul of AMP-Glo Detection Solution was added and luminescence was read after another 30 min incubation.)
UBA1, Recombinant Protein (Cat# AAA60404)
Application Data
(HTRF Assay for Recombinant BRD2 activity 3 uM histone peptide H4K5/8/12/16(ac4) was incubated with BRD2 in reaction buffer including 50 mM HEPES-NaOH pH 7.0, 0.1% BSA for 1 hour at room temperature. Anti-DYKDDDDK antibody was used to detect reaction products. All the operations and reactions were performed at room temperature. HTRF assay was used for detection.)
BRD2, Recombinant Protein (Cat# AAA60412)
Application Data
(HTRF Assay for Recombinant BRD4 activity 3 uM histone peptide H4K5/8/12/16(ac4) was incubated with BRD4 in reaction buffer including 50 mM HEPES-NaOH pH 7.0, 0.1% BSA for 1 hour at room temperature. Anti-DYKDDDDK antibody was used to detect reaction products. All the operations and reactions were performed at room temperature. HTRF was used to detect the products.)
BRD4, Recombinant Protein (Cat# AAA60413)
Application Data
(ADP-Glo assay for CDK9/CyclinT1 Complex activity 0.2 ug/ul PDKtide peptide substrate was incubated with different concentrations of CDK9/CyclinT1 Complex protein in a 10 ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 50 uM DTT, 0.1 mg/ml BSA and 100 uM ATP for 1 hour, then add 10 ul ADP-Glo Reagent at RT for 60min.Then add 20 ul Kinase Detection Reagent incubates at RT for 60min. All the operations and reactions were performed at RT. Finally, Luminescence measurement is collected by BMG.)
CDK9/CyclinT1, Recombinant Protein (Cat# AAA60416)
Application Data
(ADP-Glo assay for PI3Ka/p85 Complex activity 0.125 ug/ul PI-3 Kinase Lipid Substrate was incubated with different concentrations of PI3Ka/p85 Complex protein in a 10 ul reaction system containing 40 mM Tris-HCl pH 7.4, 20 mM MgCl2, 50 uM DTT, 0.1 mg/ml BSA and 100 uM ATP for 1 hour, then add 10 ul ADP-Glo Reagent at RT for 60min.Then add 20 ul Kinase Detection Reagent incubates at RT for 60min. All the operations and reactions were performed at RT. Finally, Luminescence measurement is collected by BMG.)
PI3Kalpha/p85, Recombinant Protein (Cat# AAA60419)
HBV surface antigen, Recombinant Protein (Cat# AAA71893)
Growth differentiation factor 11, Recombinant Protein (Cat# AAA59114)
PTHrP, Recombinant Protein (Cat# AAA75452)
Hepatitis C Virus NS3, Recombinant Protein (Cat# AAA75470)
Connective Tissue Growth Factor, Recombinant Protein (Cat# AAA38551)
Beta Defensin -3, Recombinant Protein (Cat# AAA38218)
Myoglobin, Recombinant Protein (Cat# AAA38437)
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
Interferon Stimulated Gene 15, Recombinant Protein (Cat# AAA38634)
Advanced Glycosylation End Product-Specific Receptor, Recombinant Protein (Cat# AAA38637)
Esterase D,S-Formylglutathione Hydrolase, Recombinant Protein (Cat# AAA38655)
Zika NS1, Recombinant Protein (Cat# AAA38001)
Thermus Aquaticus DNA Mismatch Repair, Recombinant Protein (Cat# AAA38054)
Calmodulin-2, Recombinant Protein (Cat# AAA38459)
Bax, Recombinant Protein (Cat# AAA38483)
Uroplakin 2, Recombinant Protein (Cat# AAA38503)
Microtubule-Associated Protein 1 Light Chain 3 Alpha, Recombinant Protein (Cat# AAA38505)
Ribophorin II, Recombinant Protein (Cat# AAA38289)
Hepatitis C Virus NS4 a+b, Recombinant Protein (Cat# AAA38319)
Purification: Purified by proprietary chromatographic technique.
3-Hydroxyanthranilate 3,4-Dioxygenase, Recombinant Protein (Cat# AAA38957)
Methyl CpG Binding Protein 2, Recombinant Protein (Cat# AAA38958)
Cystathionase, Recombinant Protein (Cat# AAA38959)
MOB1, Recombinant Protein (Cat# AAA38966)
3-Hydroxybutyrate Dehydrogenase, Recombinant Protein (Cat# AAA38977)
Obg-Like ATPase 1, Recombinant Protein (Cat# AAA38980)
Glutathione Peroxidase 1, Recombinant Protein (Cat# AAA38982)
Adenylate Kinase 4, Recombinant Protein (Cat# AAA38988)
Thiosulfate Sulfurtransferase Like Domain Containing 1, Recombinant Protein (Cat# AAA38989)
Glutathione S-Transferase Theta-2, Recombinant Protein (Cat# AAA39003)
Serpin Peptidase Inhibitor, Recombinant Protein (Cat# AAA38696)
Matrix Metalloproteinase-9, Recombinant Protein (Cat# AAA38720)
Histidine Triad Nucleotide Binding Protein 1, Recombinant Protein (Cat# AAA38732)
Glucose-6-Phosphate Isomerase, Recombinant Protein (Cat# AAA38737)
Ubiquitin Aldehyde Binding 1, Recombinant Protein (Cat# AAA38764)
O-6-Methylguanine-DNA Methyltransferase, Recombinant Protein (Cat# AAA38775)
Phosphomannomutase 2, Recombinant Protein (Cat# AAA38863)
Chikungunya Wild Type E1, Recombinant Protein (Cat# AAA38902)
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.