摘要:
A method of producing biological products using bacteria with an inactivated ptsHI and wild type err and no added glucose transport activity and which consumes nearly all glucose in the media is described. The ΔptsHI bacteria produce large quantities of recombinant protein without producing significant amounts of acetate. The bacteria grow well on standard LB broth without additional supplementation.
摘要:
The present invention describes a novel recombinant NADH recycling system that is used as a process for producing reduced compounds. In a specific embodiment, the reduced compounds include ethanol, succinate, lactate, a vitamin, a pharmaceutical and a biodegraded organic molecule. The NADH recycling system effects metabolic flux of reductive pathways in aerobic and anaerobic environments.
摘要:
Improved bacteria for making succinate and other 4 carbon dicarboxylates from the Krebs cycle have modifications to reduce acetate, lactate, EtOH and formate, as well as turn on the glyoxylate shunt, produce more NADH and overexpress In one embodiment, the bacteria are ΔadhEΔldhAΔiclRΔack-pta plus PYC+ and NAD+-dependant FDH+.
摘要:
The invention relates to a mutant strain of bacteria, which either lacks or contains mutant genes for several key metabolic enzymes, and which produces high amounts of succinic acid under anaerobic conditions.
摘要:
The present invention describes a novel recombinant NADH recycling system that is used as a process for producing reduced compounds. In a specific embodiment, the reduced compounds include ethanol, succinate, lactate, a vitamin, a pharmaceutical and a biodegraded organic molecule. The NADH recycling system effects metabolic flux of reductive pathways in aerobic and anaerobic environments.
摘要:
A method of increasing cellular NADPH levels by expressing one or more genes that encode a enzyme that causes the production of NADPH. The system can be combined with other enzymes that require NADPH, thus improving the overall production of the desired protein.
摘要:
Methods of increasing yields of succinate using aerobic culture methods and a multi-mutant E. coli strain are provided. Also provided is a mutant strain of E. coli that produces high amounts of succinic acid.