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Table 4 Primary assimilation processes in the methylotrophic network.

From: Genome-scale reconstruction and system level investigation of the metabolic network of Methylobacterium extorquensAM1

compound/precursor biosynthesis

number of carbon in precursor

number of EFMs

Max. molar-Yield

Max. carbon-Yield

Minimal EFM length

EMCP utilisation

5, 10-methylenetetrahydrofolate (Me-THF)

1

2018

1.00

1.00

20

93%

acetyl-CoA

2

2440

0.45

0.91

35

95%

glycine

2

2054

0.42

0.84

62

100%

L-serine

3

2162

0.29

0.88

62

100%

D-glyceraldehyde-3-phosphate (GA3P)

3

2592

0.27

0.81

54

100%

phosphateenolpyruvate (PEP)

3

3390

0.32

0.97

53

100%

pyruvate (PYR)

3

3065

0.33

1.00

50

100%

oxaloacetate (OAA)

4

5366

0.32

1.29

51

100%

(R)-3-hydroxybutanoyl-CoA (3HBCOA)

4

2789

0.21

0.83

37

92%

D-erythrose-4-phosphate (E4P)

4

6576

0.20

0.81

63

100%

α-ketoglutarate

5

3806

0.20

1.02

54

100%

D-ribose-5-phosphate

5

4663

0.16

0.81

61

100%

D-glucose-6-phosphate

6

2592

0.14

0.68

58

100%

  1. Number and properties of primary assimilatory EFMs detected in the methylotrophic network. The EFMs correspond to the processes allowing the conversion of methanol into 13 key carbon precursors