2.3.1.19: phosphate butyryltransferase
This is an abbreviated version!
For detailed information about phosphate butyryltransferase, go to the full flat file.
Word Map on EC 2.3.1.19
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2.3.1.19
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clostridium
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butyrate
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acetobutylicum
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butanol
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thiolase
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butyryl-coa
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acetoacetate
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phosphotransacetylase
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3-hydroxybutyrate
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polyhydroxyalkanoic
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poly3-hydroxybutyrate
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tyrobutyricum
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solventogenesis
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polythioesters
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acid-forming
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pfennigii
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3-mercaptopropionate
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acidogenic
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3-hydroxybutyryl-coa
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butyrate-forming
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biotechnology
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synthesis
- 2.3.1.19
- clostridium
- butyrate
- acetobutylicum
- butanol
-
thiolase
- butyryl-coa
- acetoacetate
- phosphotransacetylase
- 3-hydroxybutyrate
-
polyhydroxyalkanoic
-
poly3-hydroxybutyrate
- tyrobutyricum
-
solventogenesis
-
polythioesters
-
acid-forming
- pfennigii
- 3-mercaptopropionate
-
acidogenic
- 3-hydroxybutyryl-coa
-
butyrate-forming
- biotechnology
- synthesis
Reaction
Synonyms
butyryltransferase, phosphate, phophotransbutyrylase, phosphotransbutyrylase, PTB
ECTree
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General Information
General Information on EC 2.3.1.19 - phosphate butyryltransferase
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physiological function
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The product pattern of a gene disruption mutant is altered to high ethanol, i.e. 12.1 g/l, and high butanol, i.e. 8.0 g/l, titers in fermentations with pH regulated above 5.0. Glucose fed-batch cultivation elevates the ethanol concentration to 32.4 g/l, yielding a more than fourfold increased alcohol to acetone ratio as compared to the wildtype. The mutant is still capable to take up butanoate when externally added during the late exponential growth phase. Findings suggest that alternative pathways of butanoate re-assimilation exist in Clostridium acetobutylicum
physiological function
a butanoate kinase mutant is not viable if the ptb gene is not also inactivated. In a butanoate kinase/phosphate butanoyltransferase double mutant under acidogenic conditions, the primary metabolite is butanol and 2-hydroxyvalerate is produced. Under solventogenesis, 58% increased butanol production is obtained compared to the control, and 0.3 g/g butanol formation is reached. Under alcohologenesis, the major product is lactate. AdhE2, which encodes an aldehyde/alcohol dehydrogenase, is highly expressed in all metabolic states in the mutant
physiological function
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a butanoate kinase mutant is not viable if the ptb gene is not also inactivated. In a butanoate kinase/phosphate butanoyltransferase double mutant under acidogenic conditions, the primary metabolite is butanol and 2-hydroxyvalerate is produced. Under solventogenesis, 58% increased butanol production is obtained compared to the control, and 0.3 g/g butanol formation is reached. Under alcohologenesis, the major product is lactate. AdhE2, which encodes an aldehyde/alcohol dehydrogenase, is highly expressed in all metabolic states in the mutant
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