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J Biotechnol. 2007 Dec;132(4):385-94. Effect of different carbon sources on central metabolic fluxes and the recombinant production of a hydrolase from Thermobifida fusca in Bacillus megaterium. Furch T, Wittmann C, Wang W, et al.



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ATP production rate Maximum N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R00267+2.5*R08549-R00405+1.5*R00402+2.5*R00342
+2.5*R00214
ATP production rate Minium N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R08549-R00405+1.5*R00402+2.5*R00342
NADPH production rate Maximum 159 R02736+R01528+R00267+R00214
NADPH production rate Minium 78 R02736+R01528
ATP production rate Maximum N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R00267+2.5*R08549-R00405+1.5*R00402+2.5*R00342
+2.5*R00214
ATP production rate Minium N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R08549-R00405+1.5*R00402+2.5*R00342
NADPH production rate Maximum 191 R02736+R01528+R00267+R00214
NADPH production rate Minium 114 R02736+R01528
ATP production rate Maximum N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R00267+2.5*R08549-R00405+1.5*R00402+2.5*R00342
+2.5*R00214
ATP production rate Minium N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R08549-R00405+1.5*R00402+2.5*R00342
NADPH production rate Maximum N/A R02736+R01528+R00267+R00214
NADPH production rate Minium N/A R02736+R01528
ATP production rate Maximum N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R00267+2.5*R08549-R00405+1.5*R00402+2.5*R00342
+2.5*R00214
ATP production rate Minium N/A -R01786-R04779+2.5*R01061+R01512+R00200+2.5*R00209
+2.5*R08549-R00405+1.5*R00402+2.5*R00342
NADPH production rate Maximum N/A R02736+R01528+R00267+R00214
NADPH production rate Minium N/A R02736+R01528
Growth Condition
Strains B.megaterium WH323
Genotype B.megaterium WH323(lacZ-,xylA::lacZ) was transformed with the plasmid pYYBm9 carrying the gene for a heterologous hydrolase from T.fusca (referred to as TFH) under the control of the xylose inducible PxylA promoter.
Culture medium For all cultivations a defined minimal medium was used,containing the following components: 5 mM tricine, 520 uM MgCl2-6H2O, 276 uM K2SO4,50 uM FeSO4-7H2O, 1 mM CaCl2-2H2O, 100 uM MnCl2-4H2O, 50 mM NaCl, 10 mM KCl, 0.2%(w/v) (NH4)2SO4, 26 mM KH2PO4, 40 mM Na2HPO4-2H2O, 100 uL Antifoam 204 and 10 uL trace element solution per liter medium.The trace element solution contained 300 uM (NH4)6Mo7O24-4H2O, 40 mM H3BO3, 3 mM CoCl2-6H2O, 1 mM CuSO4-5H2O, 8 mM MnCl2-4H2O and 1 mM ZnSO4-7H2O.The medium was adjusted to pH 7 by adding 5 M KOH solution.
Carbon source Glucose
Growth rate 0.107/h
Case-specific description Metabolic flux distribution of strain WH323 carrying TFH encoding pYYBm9 under cultivation conditions of non-induced gene expression with glucose as the sole carbon source.
Growth Condition
Strains B.megaterium WH323
Genotype B.megaterium WH323(lacZ-,xylA::lacZ) was transformed with the plasmid pYYBm9 carrying the gene for a heterologous hydrolase from T.fusca (referred to as TFH) under the control of the xylose inducible PxylA promoter.
Culture medium For all cultivations a defined minimal medium was used,containing the following components: 5 mM tricine, 520 uM MgCl2-6H2O, 276 uM K2SO4,50 uM FeSO4-7H2O, 1 mM CaCl2-2H2O, 100 uM MnCl2-4H2O, 50 mM NaCl, 10 mM KCl, 0.2%(w/v) (NH4)2SO4, 26 mM KH2PO4, 40 mM Na2HPO4-2H2O, 100 uL Antifoam 204 and 10 uL trace element solution per liter medium.The trace element solution contained 300 uM (NH4)6Mo7O24-4H2O, 40 mM H3BO3, 3 mM CoCl2-6H2O, 1 mM CuSO4-5H2O, 8 mM MnCl2-4H2O and 1 mM ZnSO4-7H2O.The medium was adjusted to pH 7 by adding 5 M KOH solution.
Carbon source Glucose
Growth rate 0.107/h
Case-specific description Metabolic flux distribution of strain WH323 carrying TFH encoding pYYBm9 under cultivation conditions of induced gene expression with glucose as the sole carbon source.
Growth Condition
Strains B.megaterium WH323
Genotype B.megaterium WH323(lacZ-,xylA::lacZ) was transformed with the plasmid pYYBm9 carrying the gene for a heterologous hydrolase from T.fusca (referred to as TFH) under the control of the xylose inducible PxylA promoter.
Culture medium For all cultivations a defined minimal medium was used,containing the following components: 5 mM tricine, 520 uM MgCl2-6H2O, 276 uM K2SO4,50 uM FeSO4-7H2O, 1 mM CaCl2-2H2O, 100 uM MnCl2-4H2O, 50 mM NaCl, 10 mM KCl, 0.2%(w/v) (NH4)2SO4, 26 mM KH2PO4, 40 mM Na2HPO4-2H2O, 100 uL Antifoam 204 and 10 uL trace element solution per liter medium.The trace element solution contained 300 uM (NH4)6Mo7O24-4H2O, 40 mM H3BO3, 3 mM CoCl2-6H2O, 1 mM CuSO4-5H2O, 8 mM MnCl2-4H2O and 1 mM ZnSO4-7H2O.The medium was adjusted to pH 7 by adding 5 M KOH solution.
Carbon source Pyruvate
Growth rate 0.103/h
Case-specific description Metabolic flux distribution of strain WH323 carrying TFH encoding pYYBm9 under cultivation conditions of non-induced gene expression with pyruvate as the sole carbon source.
Growth Condition
Strains B.megaterium WH323
Genotype B.megaterium WH323(lacZ-,xylA::lacZ) was transformed with the plasmid pYYBm9 carrying the gene for a heterologous hydrolase from T.fusca (referred to as TFH) under the control of the xylose inducible PxylA promoter.
Culture medium For all cultivations a defined minimal medium was used,containing the following components: 5 mM tricine, 520 uM MgCl2-6H2O, 276 uM K2SO4,50 uM FeSO4-7H2O, 1 mM CaCl2-2H2O, 100 uM MnCl2-4H2O, 50 mM NaCl, 10 mM KCl, 0.2%(w/v) (NH4)2SO4, 26 mM KH2PO4, 40 mM Na2HPO4-2H2O, 100 uL Antifoam 204 and 10 uL trace element solution per liter medium.The trace element solution contained 300 uM (NH4)6Mo7O24-4H2O, 40 mM H3BO3, 3 mM CoCl2-6H2O, 1 mM CuSO4-5H2O, 8 mM MnCl2-4H2O and 1 mM ZnSO4-7H2O.The medium was adjusted to pH 7 by adding 5 M KOH solution.
Carbon source Pyruvate
Growth rate 0.103/h
Case-specific description Metabolic flux distribution of strain WH323 carrying TFH encoding pYYBm9 under cultivation conditions of induced gene expression with pyruvate as the sole carbon source.
Specific Rate (mmol g-1 h-1)
CO2 3.9
Acetate 0.16
glucose 1.53
pyruvate N/A
Specific Rate (mmol g-1 h-1)
CO2 4.09
Acetate 0.18
glucose 1.5
pyruvate N/A
Specific Rate (mmol g-1 h-1)
CO2 5.64
Acetate 0.16
glucose N/A
pyruvate 3.4
Specific Rate (mmol g-1 h-1)
CO2 5.56
Acetate 0.23
glucose N/A
pyruvate 3.45
Source