Over more than 16 years, CUSABIO Protein Expression Platform has established five recombinant expression systems from prokaryotic (E.coli) to eukaryotic (Yeast, mammalian cell and insect baculovirus), and has also built unique in vitro E.coli expression system, which enables us to express transmembrane proteins that are usually quite difficult to express. Furthermore, CUSABIO protein QC department owns a professional technical team, equipped with advanced experimental apparatus, to ensure each protein has a complete COA report and high quality. CUSABIO's purified proteins surpass 90% purity as detected by SDS-PAGE analysis.
We currently have 60+ native proteins, 100+ small molecule antigens, 750+ active proteins, 13000+ recombinant proteins , 13,000+ cDNA clones, 470+ transmembrane proteins, 500,000+ semi-customized recombinant proteins, and also could provide risk-free protein expression service and Gene, Oligo Synthesis service. All these products belong to our Protein Product Line.
CUSABIO protein products are carefully validated under strict QC standards to ensure the performance. If the product does not perform as promised in the manual, just contact us before expiration date for technical support, replacement or refund.
The quality of our proteins is the cornerstone of our ability to serve our clients. For this reason, we invest tremendous resources in developing proteins, validating their application, managing, controlling and improving quality. Each protein will undergo our standardized quality control process before shipped.
We have five recombinant expression systems, including Yeast, E. coli, Baculovirus-infected insect cell, Mammalian cell and Cell-free (in vitro E.coli). Different expression systems have various characteristics and are suitable for expressing different proteins, which can satisfy the different experimental requirements of researchers. Here is some introduction to the characteristics of five expression systems which could help you to choose a suitable system.Read More
We could provide multiple tags for each protein to meet the different needs of different customers. Here we list the possible tag types of each expression system. Please click here to more details.
Big fermentation tanks (50L, 500L) allow us to produce protein in large scale. We have successfully completed 100mg, 200mg, 500mg industrial bulk orders.
You can use Protein name / Cat No / Alias / Abbreviations / Uniprot No to search your desired protein in the above search bar, which contain millions of proteins, then you can request the quotation through the livechat or send your request to [email protected].
Our company has a R&D team consisted of scientists with Doctorate and Master Degrees. More than 60% of the total number of employees are in tech service team, including 20% PhDs and 40% Masters; Technical elites are from the well-known domestic institutions, with years of experience in the development of proteins.
CUSABIO is glad to tell you that we have developed our line of animal-free recombinant proteins, which drastically minimize the variable factors and potential contamination of mammalian pathogens during the production process. These animal-free proteins are produced in animal-free media, and the purification equipment is also animal component free. animal-free recombinant proteins are worth being owned!
Our Protein Expression Platform has established five recombinant expression systems from prokaryotic to eukaryotic, and has also built cell-free expression system. We also set up a special and independent protein quality control department, which is in accordance with the quality standard of international protein market, to detect protein's purity, activity, endotoxin level, etc. With our professional R&D team, we can develop and produce more than 2700 proteins each year.
The default delivery form is liquid form. If the customer has demand for lyophilized form, please remark this requirement when placing order.
Relatively speaking, the lyophilized form will be more stable than the liquid form, and the shelf life will be longer. But lyophilization may have damage to protein structure, and may affect activity of some proteins.