Address: 45-1 Ramsey Road, Shirley, NY 11967, USA    USA: 1-631-559-9269  1-631-448-7888   Fax: 1-631-938-8127  Europe: 44-207-048-3343   Email:
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Your Position:  Home >> Services >> Protein Expression and Purification Services >> Bacterial Expression Systems (E. coli / Bacillus)

Bacterial Expression Systems (E. coli / Bacillus)


Over the years, Creative BioMart has developed BacTECTM and FoldEZTM technologies to tackle hard-to-express and hard-to-dissolve proteins. With BacTECTM technology, the expression level can be greatly improved for almost all of the proteins. In addition, over 98% of the inclusion bodies can be refolded and solubilized by our proprietary FoldEZTM protein refolding technology.

Our OxiCytoTM competent E.coli strains are excellent options for expressing proteins having complex disulfide bonds.

Typically, the first choice for the expression of recombinant proteins is E. coli. Protein product in E. coli is fast, convinent, well-established and usually high yields.
Newly-built facilities supporting a vast array of state-of-the-art equipment are leveraged by our experienced PhD-level scientists to deliver proteins expressed via microbial systems quickly and economically.

“One of the most popular technologies is BacTECTM system. Creative BioMart's patented BacTECTM system is capable of achieving high levels of soluble expression proteins. While the technology has shown it can express many types of proteins, it has established a track record for producing high-quality, correctly folded antibody fragments (including Fabs and scFv).”

Our BacTECTM protein refolding technology is designed to determine the optimal refolding conditions by evaluation a series of buffers. We provide refolded protein at purity of 95% or greater.

Exclusively from Creative BioMart, OxiCytoTM competent E. coli strains are engineered to enable the folding of recombinantly expressed proteins in vivo. The expression of the isomerase, DsbC, within the OxiCyto cytoplasm enhances the correct formation of disulfide bonds in proteins that require them for biological activity.

Our Bacillus subtilis system is an ideal option for the expression of monomeric protein products at high expression levels. This high yield, combined with our patented fermentation protocols allow for fast process development and scale-up to support early clinical testing.

Welcome to contact us or send an email to for project quotations and more detailed information.
45-1 Ramsey Road, Shirley, NY 11967, USA
USA: 1-631-559-9269  1-631-448-7888
Europe: 44-207-048-3343
FAX: 1-631-938-8127

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