Table 2. Properties of the genome-scale (ECGS), the core (ECC2) and the compressed core (ECC2comp) E. coli network model discussed in the text.
| iJO1366 | ECGS | ECC2 | ECC2comp | |
|---|---|---|---|---|
| # reactions (reversible) | 2583 (635) | 2583 (636) | 499 (198) | 82 (32) [79 (35)] |
| # internal metabolites | 1805 | 1807 | 486 | 54 [61] |
| # external metabolites | 0 | 331 | 33 | 40 [33] |
| # degrees of freedom | 817 | 815 | 25 | 28 [25] |
| # conservation relations | 39 | 39 | 12 | 0 [7] |
| # subsets of coupled reactions (# containing reactions) | 487 (1456) | 330 (968) | 25 (462) | 15 (32) |
ECGS is a slightly modified version of iJO1366 (see text). The number of reversible reactions for iJO1366 and ECGS refers to the used minimal medium configuration. The numbers in the brackets in the ECC2comp column refer to the compressed model before splitting three reversible exchange reactions and removing conservation relations by setting one metabolite per conservation relation to external (see text). ECGS, ECC2 and ECC2comp are available as SBML files in the Supplementary Material and as corresponding CellNetAnalyzer projects at http://www2.mpi-magdeburg.mpg.de/projects/cna/cna.html.