Total reaction number (n) | Number of added metabolic pathways (m) | Combinations of metabolic reactions | Rate of increase of succinic acid production yield |
---|---|---|---|
0 | 0 | Â | 100* |
1 | 1 | R00479 | 133 |
 |  | R00751 | 102 |
 |  | R01867 | 102 |
2 | 2 | R00751, R00479 | 144 |
 |  | R00479, R01867 | 134 |
3 | 3 | R00751, R00479, R10179 | 155 |