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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 9000-9050 of 14163 product results
BEnteropeptidase/Enterokinase, Recombinant Protein (Cat# AAA38271)
ARP3 Actin-Related Protein 3, Recombinant Protein (Cat# AAA38014)
Monoamine Oxidase A, Recombinant Protein (Cat# AAA38032)
cyclin-dependent kinase 1, Recombinant Protein (Cat# AAA38035)
Soluble IL-6 Receptor alpha, Recombinant Protein (Cat# AAA38043)
HIV-1 gp41, Recombinant Protein (Cat# AAA71902)
Application Data
eno1, Recombinant Protein (Cat# AAA72841)
Standard Curve (Sample)
(The titer has been suggested in reference to an "in-house" ELISA kit performed over the first lot obtained. ELISA assays were performed with a serum sample panel of 25 positive- specimen sera and 5 negative specimen sera, validated by chimioluminiscence (Architect, Abbot) and obtained from the Andalusian Public health System Biobank.Each end user should carry out his own titration for his particular application.In this plot, the optical density at 450/620 nm for positive (blue) and negative (gray) IgG sera for Chagas disease are compared for each concentration of the recombinant antigen. An appropriate statistical test of significance for the comparison of means between both groups, the Welch's test, is employed. Eligible concentrations for the use of the antigen should present statistically significant differences between positive and negative sera. This happens when the intervals at the top do not overlap and, equivalently, when the p-value at the bottom is below 0.05. In the present figure, all p-values are below 0.05 and thus the intervals do not overlap. Therefore, any of the showed concentrations can be used to distinguish between positive and negative sera.)
B13, Recombinant Protein (Cat# AAA72861)
Quality Control
OMP, Recombinant Protein (Cat# AAA72864)
Application Data
(This protein does not contain any Trp residues. Experience shows that this could result in more than 10% error in the computed extinction coefficient. Therefore, we have meassured the protein concentration by using the colorimetric assay based on the interaction between Coomassie brilliant blue and the arginine and aromatic residues (Bradford Method) and its maximum absorption shifts from 470 nm to 595 nm. The standard curve was performed with the protein BSA. 40 ul of the protein were analysed.DO595 = 0.977)
Phl p 7, Recombinant Protein (Cat# AAA72867)
BPI fold containing family A Member 1, Recombinant Protein (Cat# AAA38477)
CCAAT/enhancer binding protein(C/EBP) Gamma, Recombinant Protein (Cat# AAA38490)
GroES, Recombinant Protein (Cat# AAA38371)
Vimentin, Recombinant Protein (Cat# AAA38426)
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
Receptor Associated, Recombinant Protein (Cat# AAA38449)
NAD(P)H Dehydrogenase Quinone 1, Recombinant Protein (Cat# AAA38719)
Non-Metastatic Cells 2, Recombinant Protein (Cat# AAA38746)
Nudix Type Motif 1, Recombinant Protein (Cat# AAA38878)
RAP2A, Recombinant Protein (Cat# AAA38900)
Lysyl-tRNA Synthetase, Recombinant Protein (Cat# AAA38912)
Nudix Type Motif 16 Like-1, Recombinant Protein (Cat# AAA38918)
Tropomyosin-3, Recombinant Protein (Cat# AAA38926)
SDS-PAGE
Complement Component 1, Recombinant Protein (Cat# AAA38627)
A Disintegrin and Metalloproteinase Domain 12 S Isoform, Recombinant Protein (Cat# AAA38667)
Annexin A3, Recombinant Protein (Cat# AAA38693)
Transgelin, Recombinant Protein (Cat# AAA38826)
Quinolinate Phosphoribosyltransferase, Recombinant Protein (Cat# AAA38836)
Uridine-Cytidine Kinase 2, Recombinant Protein (Cat# AAA38865)
nth Endonuclease III-Like 1, Recombinant Protein (Cat# AAA38974)
SDS-PAGE
(The purity of Fel d 1 was determined to be >90% by densitometry.)
Fel d 1, Recombinant Protein (Cat# AAA73576)
DNA repair protein RAD9 (RAD9), Recombinant Protein (Cat# AAA235253)
SDS-PAGE
COMT, Recombinant Protein (Cat# AAA258002)
SDS-PAGE
STC1, Recombinant Protein (Cat# AAA258031)
SDS-PAGE
PCDH7, Recombinant Protein (Cat# AAA258059)
Application Data
COVID 19 (B.1.640) Spike RBD Coronavirus, Recombinant Protein (Cat# AAA258565)
SDS-PAGE
Monkeypox Virus (MPXV) I1L Protein, Recombinant Protein (Cat# AAA258507)
Application Data
(SEC-HPLC)
Monkeypox Virus (MPXV) L1R Protein, Recombinant Protein (Cat# AAA258508)
SDS-PAGE
(Figure. SDS-PAGE)
ATP Binding Cassette Transporter A4 (ABCA4), Recombinant Protein (Cat# AAA162002)
SDS-PAGE
(Figure. SDS-PAGE)
Notch Regulated Ankyrin Repeat Protein (NRARP), Recombinant Protein (Cat# AAA162030)
SDS-PAGE
Collagen Type III Alpha 1 (COL3a1), Recombinant Protein (Cat# AAA135536)
SDS-PAGE
Elastase 1, Pancreatic (ELA1), Recombinant Protein (Cat# AAA135560)
SDS-PAGE
Receptor Interacting Serine Threonine Kinase 3 (RIPK3), Recombinant Protein (Cat# AAA135562)
SDS-PAGE
Matrix Metalloproteinase 9 (MMP9), Recombinant Protein (Cat# AAA135482)
SDS-PAGE
Retinoic Acid Inducible Gene 1 Protein (RIG1), Recombinant Protein (Cat# AAA135486)
SDS-PAGE
Alanine Aminopeptidase (AAP), Recombinant Protein (Cat# AAA135498)
SDS-PAGE
Nuclear Receptor Subfamily 3, Group C, Member 1 (NR3C1), Recombinant Protein (Cat# AAA135500)
SDS-PAGE
Retinoic Acid Inducible Gene 1 Protein (RIG1), Recombinant Protein (Cat# AAA135503)
SDS-PAGE
Peptidoglycan Recognition Protein 1 (PGLYRP1), Recombinant Protein (Cat# AAA135467)
rAlt a 1, Recombinant Protein (Cat# AAA129079)
SDS-PAGE
cytomegalovirus (HCMV) Glycoprotein B/gB Protein, Recombinant Protein (Cat# AAA177988)
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.