Method for the fermentative production of molecules of interest by microorganisms comprising genes coding sugar phosphotransferase system (PTS)
AssigneeMetabolic Explorer
InventorsGwénaëlle Corre, Céline Raynaud
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Abstract
The present invention relates to a new method for the production of a molecule of interest by conversion of a source of carbon in a fermentative process comprising culturing a microorganism genetically modified for the production of molecule of interest, wherein said microorganism comprises functional genes coding PTS carbohydrate utilization system and wherein the expression of proteins regulated the expression of phosphoenolpyruvate synthase (PPS) is down-regulated. The present invention also relates to the genetically modified microorganism used in the method of the invention.
Claims11
A method for the production of a molecule of interest by conversion of a source of carbon in a fermentative process comprising the following steps:
- culturing a microorganism genetically modified for the production of the molecule of interest in an appropriate culture medium comprising a carbohydrate as source of carbon and
- recovering the molecule of interest from the culture medium,
- wherein said genetically modified microorganism comprises functional genes coding for a phosphotransferase carbohydrate utilization system,
- wherein in said genetically modified microorganism the expression of the bifunctional ADP-dependent kinase-Pi-dependent pyrophosphorylase protein regulating the expression of the phosphoenolpyruvate synthase (PPS) is decreased,
- wherein the molecule of interest is selected from glycolic acid, lactic acid, 1,3-propanediol, 1,2-propanediol, prenol, isobutene, butadiene, butanediol, methyl ethyl ketone, succinic acid, glutamic acid, adipic acid, muconic acid, lysine, dodecanedioic acid, farnesene, and 2,4-dihydroxybutyric acid, and
- wherein the carbohydrate is selected from the group consisting of glucose, fructose, mannose, cellobiose, and sucrose, and any combination thereof.
Dependencies are inferred from the claim text.