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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.