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Table 2 Total number of biochemical conversions and transport processes in the reconstructed metabolic network of A. nidulans and comparison with the metabolic networks of A. niger (316 unique reactions) and S. cerevisiae (843 unique reactions).

From: Analysis of Aspergillus nidulans metabolism at the genome-scale

Part of metabolism

Total no. of metabolic reactions network (no. of unique)

No. of unique reactions common to other metabolic networks

  

A. niger 1

S. cerevisiae

Biochemical reactions

1095 (6811)

191

580

C-compound metabolism

463 (220)

157

160

Energy metabolism

20 (17)

11

13

Aminoacid metabolism

238 (171)

3

170

Nucleotide metabolism

144 (114)

17

114

Lipid metabolism

175 (122)

1

115

Secondary metabolism

42 (25)

1

3

Nitrogen and sulphur metabolism

8 (7)

-

4

Polymerization, assembly and maintenance

5 (5)

1

1

Transport processes

118 (113)

60

59

TOTAL

1213 (794)

251

639

  1. The number of unique reactions in the metabolic network of A. nidulans is shown in parenthesis. The metabolic functions may be or not assigned to ORFs.
  2. 1 Note that the metabolic network for A. niger is only detailed for the metabolism of C-compounds (the other parts of the metabolism are represented by lumped reactions) [21], which justifies the relatively low number of reactions in common to both networks in what concerns the other parts of the metabolism.
  3. 2 6 non-enzymatic steps are included.