Protein Expression Systems
Protein expression systems are required to produce high yields of proteins for analysis and downstream applications. Cambridge Bioscience offers the Expresso® Cloning and Protein Expression Systems from Lucigen enabling the process of cloning of a gene of interest to the start of expression analysis in less than one day.
The Expresso® systems use in vivo homologous 
recombination to clone PCR amplified DNA into specifically designed expression vectors removing the need for purification steps and making the system enzyme free. The desired insert is amplified using primers containing an 18 base overlap with the Expresso® expression vector. The unpurified PCR amplicon is subsequently mixed with the pre-processed expression plasmid and high-efficiency competent cells provided, and directly plated on appropriate media
Benefits of using the Expresso® System
• Directional PCR cloning in just seconds
• Choice between bacterial and mammalian expression systems
• 90% recombinants
• Eliminates restriction digests, ligation, vector preparation and DNA purification
• SUMO solubility tag overcomes inclusion body problems (only available for T7 and rhamnose system)
• Tightly-controlled expression of N- or C- terminal
• 6xHis/HA-tagged proteins for easy identification
• Easier downstream manipulation of small vectors (2.2 kb to 3.4 kb)
Cambridge Bioscience offers the following systems:
1. Bacterial Expression Systems
T7 & Rhamnose with optional SUMO tag to increase solubility
2. Mammalian Expression System
Strong, constitutive CMV driven protein expression
Featured products within Protein Expression Systems
