The baculovirus-insect cell expression system is one of the most powerful and robust methods for recombinant protein production and can be used to produce a variety of therapeutic proteins. This system can express proteins more efficiently than other expression systems with better post-translational modifications. As a trusted protein production contract organization, CD Formulation is committed to developing and optimizing the baculovirus-insect cell expression system to meet the diverse needs of our customers. We have advanced technology platforms and rich experience to efficiently produce a variety of recombinant proteins, including vaccines, therapeutic proteins, and enzymes.
The baculovirus-insect cell expression system is an important technology for recombinant protein production. This system has the advantages of efficient expression of foreign proteins and the ability to perform complex post-translational modifications, which is suitable for the production of a variety of biopharmaceuticals, vaccines, and industrial enzymes. Baculovirus can introduce target genes into insect cells through transfection, replicate in large quantities in the cells, and finally release recombinant proteins. It has the characteristics of low cost, simple operation, and high expression level, and is one of the widely used methods in biotechnology research and applications.
Fig. 1 Baculovirus genome editing and the expression of foreign proteins. (Hong M, et al., 2022)
As a leading protein production contract organization, CD Formulation is focused on providing high-quality therapeutic protein production services to customers around the world. Our professional team has extensive experience in providing customized solutions for a wide range of biopharmaceutical products.
With our optimized insect expression system, our team provides high-quality therapeutic protein production services, covering a full range of services from gene cloning, and viral vector construction to cell culture and protein purification.
In addition, with optimized expression vectors and our extensive experience in therapeutic protein expression and purification, we use the baculovirus-insect cell system to provide customers with high-quality protein expression service.
We have a variety of commonly used insect cell lines, such as Sf9, Sf21, Hi-5, etc. In general, Sf9 cells are used for virus amplification, while Hi-5 cells are used for protein expression. By optimizing expression vectors, we can effectively improve protein expression levels.
Sf9 and Sf21 Cell | Hi-5 Cell |
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Features of Baculovirus-Insect Cell Expression System
Expression Platform | Properties | |||||||||
Growth Speed | Expression Level | Production Time | Contamination Risk | Posttranslational Modification | ||||||
Protein Folding | Phosphorylation | Acetylation | N-linked glycosulation | O-linked glycosulation | Acylation | |||||
Yeast | Rapid | Low-High | Medium | Low | Sometimes | Yes | Yes | High Mannitol | Yes | Yes |
Baculovirus-Insect Cell | Slow | Low-High | High | High (e.g., virus) | Suitable | Yes | Yes | Simple | Yes | Yes |
E. coli | Rapid | High | Low | Medium (e.g., endotoxin) | Need | No | No | No | No | No |
Mammalian Cell | Slow | Low-Medium | High | Very high (e.g., virus, DNA) | Suitable | Yes | Yes | Complex | Yes | Yes |
Published Data
Technology: Baculovirus Expression Vector System
Journal: Trop Med Infect Dis.
IF: 2.8
Published: 2023
Results:
The authors investigated the expression of SARS-CoV-2 S1 subunit (S1RBD) RBD (His-tagged) under different culture conditions using Western blotting. Different parameters including the multiplicity of infection (MOI), cell density at infection, and harvest time were investigated to determine the optimal conditions for efficient production of S1RBD. The antigenic potential of the produced S1RBD against COVID-19 was assessed using Western blotting.
Fig. 2 Recombinant baculovirus titer and S1RBD expression at different MOIs. (Boumaiza M, et al., 2023)
Thanks to our in-house advanced baculovirus-insect cell expression platform, CD Formulation is committed to providing efficient and economical production of therapeutic proteins. Please don't hesitate to contact us if you are interested in our services. We look forward to cooperating with you.
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