INCREASING SPACE-TIME-YIELD, CARBON-CONVERSION-EFFICIENCY AND CARBON SUBSTRATE FLEXIBILITY IN THE PRODUCTION OF FINE CHEMICALS
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Feb 9, 2023
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Dec 16, 2020
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Dec 16, 2020
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Increasing space-time-yield, carbon-conversion-efficiency and carbon substrate flexibility in the production of fine chemicals The inventors of the current invention have found a surprising positive effect of increased cAMP levels and/or manipulating the PTS system on the space-time-yield, carbon-conversion-efficiency and carbon substrate flexibility of fine chemical production of a host organism. This was achieved by de-regulating adenylate cyclase cyaa by deleting the C-terminal regulatory region leading to increased cAMP levels or deleting the Crr protein activity (carbohydrate repression resistance) which regulates the carbohydrate utilization system. Both lead to increased 2-fucosyllactoe and 6-sialyllactose production (human milk oligosaccharides) and increase carbohydrate usage.
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