Abstract: Provided herein are E. coli host strains with improved capacity for producing recombinant proteins.

Abstract: Provided herein are methods for the improved production of periplasmic-targeted recombinant proteins in E. coli host strains. Also provided are E. coli host strains with improved capacity for producing recombinant proteins.

Abstract: The present invention relates to the use of redox agents for purification of the CRM 197 variant of diphtheria toxin. The invention further relates to multi-step purification of CRM 197 from bacterial fermentates.

Abstract: Methods and compositions for long term continuous flow fermentation using a two vessel continuous culture fermentation apparatus are described.

Abstract: Provided herein are methods for the improved production of periplasmic-targeted recombinant proteins in E. coli host strains. Also provided are E. coli host strains with improved capacity for producing recombinant proteins.

Abstract: Methods and compositions for long term continuous flow fermentation using a two vessel continuous culture fermentation apparatus are described.

Abstract: The present invention relates to the use of redox agents for purification of the CRM 197 variant of diphtheria toxin. The invention further relates to multi-step purification of CRM 197 from bacterial fermentates.

Abstract: A two-vessel continuous flow system in conjunction with low mutation reduced genome bacterial strains provides a platform for long term extended fermentations. Such systems require modification of standard fermentation devices such as probes, pumps and monitoring systems as well as improved procedures for feed delivery, culture monitoring and product harvesting methods. An optimized two-vessel system for producing large quantities of fermentation products from small volume, long duration continuous fermentations represents a significant improvement over existing fermentation strategies. Methods and compositions for long term continuous flow fermentation using a two vessel continuous culture fermentation apparatus are described.

Abstract: Rediced genome or native K12 strain E. coli bacteria comprising expression vectors encoding a recombinant CRM197 protein and their use in the production of CRM 197 is provided. The CRM 197 protein may be fused to a signal sequence that directs the expressed CRM197 protein to the periplasm of the E. coli host.

Abstract: E. coli bacteria comprising genetic modifications to enhance fermentability and production of protein and nucleic acids are provided.

Abstract: A two-vessel continuous flow system in conjunction with low mutation reduced genome bacterial strains provides a platform for long term extended fermentations. Such systems require modification of standard fermentation devices such as probes, pumps and monitoring systems as well as improved procedures for feed delivery, culture monitoring and product harvesting methods. An optimized two-vessel system for producing large quantities of fermentation products from small volume, long duration continuous fermentations represents a significant improvement over existing fermentation strategies. Methods and compositions for long term continuous flow fermentation using a two vessel continuous culture fermentation apparatus are described.

Abstract: Reduced genome bacteria with improved genetic stability are provided. Also provided are methods of producing polypeptides using the reduced genome bacteria with improved genetic stability.

Abstract: E. coli bacteria comprising genetic modifications to enhance fermentability and production of protein and nucleic acids are provided.

Abstract: Rediced genome or native K12 strain E. coli bacteria comprising expression vectors encoding a recombinant CRM197 protein and their use in the production of CRM 197 is provided. The CRM 197 protein may be fused to a signal sequence that directs the expressed CRM197 protein to the periplasm of the E. coli host.

Abstract: E. coli bacteria comprising genetic modifications to enhance fermentability and production of protein and nucleic acids are provided.

Abstract: Reduced genome bacteria with improved genetic stability are provided. Also provided are methods of producing polypeptides using the reduced genome bacteria with improved genetic stability.

Abstract: Reduced genome bacteria with improved genetic stability are provided. Also provided are methods of producing polypeptides using the reduced genome bacteria with improved genetic stability.

Abstract: Reduced genome strains of E. coli MG1 655 are described. In various embodiments, the strains have one or more of equal or improved growth rate, transformation efficiency, protein expression, DNA production, DNA yield and/or DNA quality compared to the parental strain and commercially available strains.

Abstract: Reduced genome strains of E. coli MGl 655 are described. In various embodiments, the strains have one or more of equal or improved growth rate, transformation efficiency, protein expression, DNA production, DNA yield and/or DNA quality compared to the parental strain and commercially available strains.

Abstract: The present invention relates to novel strains of microorganisms with oxygen-regulated metabolism. The microorganisms have higher growth rates and are more efficient than parental strains. The microorganisms may be used to produce a variety of products of interests, such as recombinant proteins, nucleic acids, such as DNA, amino acids, and chemicals.