CUSABIO Recombinant Protein Expression Service
12 years'experience, 15000+ orders completed, 99.1% success rate

Why choose us？

Risk-free: Do not charge by steps. No protein, No charge
Competitive price as low as $535
39 kinds of tags meeting different demands
Secondary AKTA-SEC purification to ensure high purity
Ability to achieve large-scale protein production (10 mg, 50 mg, 100 mg, 200 mg available)
Post-purification services available: Desalting, aliquot, endotoxin removal, aseptic process and lyophilization

Note: This risk-free custom protein service is only suitable for proteins within 800aa.We will charge according to different steps if you need to express proteins more than 800aa.

Recombinant Protein Expression Service advantage

General Information
Which expression system suits your experiment most ?

Service process:

Request now and get a $50 voucher

Voucher application date: 1st Jan 2019—31st Dec 2019.

Submit for a request now

Final Deliverables:

Purified protein, the purity is more than 85%;
Standard COA report as well as datasheet, including tag information, molecule weight, electrophoretic parameters, protein expression quantity, concentration, purity, SDS-PAGE, etc.

Which expression system suits your experiment most ?

Expression System	System Benefits	Application	Features of Cusabio
In vitro E.coli Expression System	Simple, take short time, high expression quantity, open and flexible, easy to express specific proteins, prepare protein complexes, parallel to synthesize a variety of different proteins, etc.	Toxic proteins, membrane proteins	Small amount expression conditions fumble, solve relative problems professionally, greatly reducing the experimental period, increase the expression quantity
E. coli Expression System	High target gene expression quantity, low cost, simple culture conditions, product rapidly, strong scalability, simple conversion operation, easy to form disulfide bond	Prokaryotic proteins, simple eukaryotic proteins	Expression includes soluble protein, inclusion body, fusion proteins, etc., with wealthy experience and expertise, we can solve a variety of bottlenecks during the protein expression process
Yeast Expression System	Cost-effective, low-cost for amplifying medium, simple culture conditions, production rapidly, strong scalability, good choice for secretory protein or intracellular protein expression, secrete proteins efficiently and allow simple purification, extensive post-translational modifications, no endotoxin	Industrial strain improvement, amplification	The combination of self-transformed efficient secretion vector and host can achieve the highest quality protein expression to the maximum extent; Patented Biobrick technology can be successfully used to the improvement and optimization of industrial strain
Insect baculovirus expression system	Large gene capacity, high efficiency of exogenous gene expression, effective cell fold, moderate scalability, extensive post-translational modifications, glycosylation similar to mammalian cells, is relatively easy enzymatic deglycosylation, no endotoxin	Virus vaccines, signal proteins, cytokines, kinases, etc.	Adopt AcNPV-sf9 cells and high5 cells two expression systems, the selectivity of multiple expression systems, multiple hosts, multi-carrier greatly improve the success rate of protein expression
Mammalian Cell Expression System	Higher expression levels, moderate scalability, cell suspension culture characteristic can do mass production, effective protein fold, suitable for protein secretion, full post-translational modifications, no endotoxin	Complex higher eukaryotes proteins	Adopt the specific combined methods of mammalian cell expression vector and a variety of transfection, optimize expression conditions, improve transfection efficiency, greatly shorten the experimental period, significantly increase the expression quantity

Have you already confirmed the suitable expression system ?

Yes. Submit for a request.

No. Talk with us on the livechat or contact us through email. Together with a dedicated R&D team, our expert scientists and quality assurance team will deliver unique solutions tailored to bring you success more efficient and economically.

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Protein FAQs CUSABIO's Five Expression Systems General Information of Different Tags Production of Recombinant Protein How to Choose A Suitable Expression Vector? How to Express A Protein with Bioactivity? Applications of Recombinant Proteins