Navigating a New Standard in Microbial Protein Expression

An ideal therapeutic protein “factory” creates a pure target product with high titers from the start, which can minimize development risk, timelines, and cost. E. coli has long been implemented as a therapeutic protein factory due to its simplicity, tractability, and wealth of information characterizing the microbe.

While common E. coli expression strains alter as many as five genes to improve one aspect of recombinant protein expression, KBI has created a platform E. coli with about 1,000 genes altered and roughly 1 Mbp of DNA removed. The result is a PURE, efficient platform expression strain—PUREcoli™.