Table 3. The statistical properties of yeast cell-cycle regulatory map in this study.
| Li et al (2004) | Chen et al (2004) | This study | |
|---|---|---|---|
| aWe ignored the types of regulations, activation or inhibition when counting. | |||
| bThe number in brackets indicates the total number of mutual regulations including mutual inhibitions and activations. That also means the number of feedback loops with 2 hops. | |||
| cThe number of all feedbacks with 3, 4 or 5 hops is shown in brackets. Therefore, the difference between the numbers inside and outside brackets indicates the number of positive feedback loops. | |||
| Number of nodes | 18 | 31 | 78 |
| Number of edges | 31 | 76 | 175 |
| Number of motifs | |||
| Feed-forward regulationsa | 5 | 9 | 68 |
| Mutual inhibitions or activationsb | 0 (/1) | 8 (/8) | 8 (/11) |
| Number of negative feedbacksc | |||
| 3 hops | 1 (/1) | 2 (/5) | 7(/15) |
| 4 hops | 2 (/4) | 8 (/15) | 23 (/40) |
| 5 hops | 1 (/3) | 7 (/11) | 35 (/60) |