Skip to main content

Table 5 Relative gene expression in E. coli BW25113 Δpta strain.

From: An insight into the role of phosphotransacetylase (pta) and the acetate/acetyl-CoA node in Escherichia coli

   

Glucose aerobic

batch cultures

Acetate aerobic

batch cultures

 

gene

pathway

Early exponential

phase

Late exponential

phase

Early exponential

phase

Late exponential

phase

rpoD

RNA polymerase sigma 70 subunit

Transcriptional regulators

0.05 ± 0.02

-0.15 ± 0.04

-0.46 ± 0.23

-0.36 ± 0.10

rpoS

RNA polymerase sigma 38 subunit

 

-0.18 ± 0.22

-0.48 ± 0.05

0.36 ± 0.17

-0.18 ± 0.32

ihfA

Integration host factor, α subunit

 

0.31 ± 0.19

-0.46 ± 0.3

-0.15 ± 0.06

-0.59 ± 0.08

crp

cAMP repression protein

 

0.04 ± 0.15

0.31 ± 0.11

-0.22 ± 0.25

-0.05 ± 0.04

pdhR

Pyruvate dehydrogenase complex regulator

 

-0.70 ± 0.15

-1.11 ± 0.15

n.d.

n.d.

fruR

cAMP independent protein

 

-0.19 ± 0.01

-0.20 ± 0.16

-0.59 ± 0.06

-0.05 ± 0.04

zwf

Glucose 6-phosphate dehydrogenase

Pentose phosphate pathway

-0.04 ± 0.02

-0.05 ± 0.03

-0.39 ± 0.06

-0.24 ± 0.04

ptsG

Enzyme IIglc, PTS subunit

Glucose transport

0.21 ± 0.15

-0.20 ± 0.16

n.d.

n.d.

pykF

Pyruvate kinase F

Glycolysis

-0.12 ± 0.08

0.26 ± 0.11

-0.85 ± 0.22

-0.88 ± 0.24

pykA

Pyruvate kinase A

 

-0.25 ± 0.16

0.67 ± 0.11

-0.83 ± 0.10

-0.13 ± 0.06

aceE

Pyruvate dehydrogenase

 

-0.07 ± 0.12

0.00 ± 0.05

-1.04 ± 0.18

-0.16 ± 0.07

ldhA

NAD dependent

D-Lactate dehydrogenase

Fermentation pathways

-0.02 ± 0.11

0.73 ± 0.18

n.d.

n.d.

dld

NAD independent

Lactate dehydrogenase

 

0.31 ± 0.26

-0.66 ± 0.05

n.d.

n.d.

lldD

NAD independent

L-lactate dehydrogenase

 

-0.09 ± 0.12

-0.41 ± 0.03

n.d.

n.d.

adhE

Alcohol dehydrogenase

 

-0.76 ± 0.04

0.21 ± 0.04

n.d.

n.d.

pflA

Pyruvate formate-lyase

activating enzyme

 

-0.09 ± 0.19

1.10 ± 0.10

n.d.

n.d.

acs

Acetyl-CoA synthethase

Acetate metabolism

0.37 ± 0.10

-0.71 ± 0.01

-1.28 ± 0.39

-1.36 ± 0.77

poxB

Pyruvate oxidase

 

-0.94 ± 0.30

-0.40 ± 0.05

-0.82 ± 0.10

-1.00 ± 0.11

actP

Acetate Permease

 

n.d.

n.d.

-0.28 ± 0.10

-1.13 ± 0.03

ackA

Acetate Kinase

 

n.d.

n.d.

-0.10 ± 0.01

-0.44 ± 0.00

icdA

Isocitrate dehydrogenase

TCA cycle

0.27 ± 0.04

-0.30 ± 0.16

-0.82 ± 0.17

0.31 ± 0.47

sucA

2-ketoglutarate dehydrogenase subunit

 

-0.12 ± 0.19

0.05 ± 0.03

-0.79 ± 0.17

-0.57 ± 0.36

sdhC

succinate dehydrogenase membrane protein

 

-0.14 ± 0.11

-0.77 ± 0.18

0.43 ± 0.58

-0.13 ± 0.47

mdh

Malate dehydrogenase

 

0.15 ± 0.03

-0.28 ± 0.08

-0.87 ± 0.08

-0.52 ± 0.17

aceA

Isocitrate lyase

Glyoxylate shunt

0.27 ± 0.06

-1.18 ± 0.09

-0.35 ± 0.25

-0.54 ± 0.23

aceB

Malate synthase

 

0.01 ± 0.11

-0.85 ± 0.04

-0.83 ± 0.15

-0.31 ± 0.31

maeB

Malate dehydrogenase

(NADP+-requiring)

Glucogenogenesis/anaplerosis

0.25 ± 0.09

-0.26 ± 0.01

-0.39 ± 0.27

0.27 ± 0.34

sfcA/maeA

Malate dehydrogenase

(NAD+-requiring)

 

0.26 ± 0.04

-0.18 ± 0.03

-0.05 ± 0.23

-0.45 ± 0.28

pck

Phosphoenolpyruvate carboxykinase

 

0.32 ± 0.07

1.04 ± 0.03

-0.57 ± 0.19

0.36 ± 0.13

ppc

Phosphoenolpyruvate carboxylase

 

-0.07 ± 0.08

0.68 ± 0.01

0.21 ± 0.25

0.29 ± 0.03

pps

Phosphoenolpyruvate synthase

 

1.27 ± 0.07

0.64 ± 0.00

-0.39 ± 0.05

-0.07 ± 0.37

  1. Logarithmic ratios were determined using the ΔΔCt method. The E. coli BW25113 (wild type) strain was used as control under each growth condition. Experimental conditions are expressed in Materials and Methods section. (n.d. - not determined).