Table 5 The effects of key enzyme knockouts on optimal flux of biomass and CO2 fixation
From: Systematic Comparison of C3 and C4 Plants Based on Metabolic Network Analysis
Enzyme | EC | Pathway | Ratio of biomass | Ratio of CO2 fixation | ||
|---|---|---|---|---|---|---|
| Â | Â | Â | C3 | C4 | C3 | C4 |
Rubisco | 4.1.1.39 | Calvin cycle | 0 | 0 | 0 | 0 |
RPI | 5.3.1.6 | Calvin cycle | 0 | 0 | 0 | 0 |
Prk | 2.7.1.19 | Calvin cycle | 0 | 0 | 0 | 0 |
RPE | 5.1.3.1 | Calvin cycle | 0 | 0 | 0 | 0 |
TKT | 2.2.1.1 | Calvin cycle | 0 | 0 | 0 | 0 |
TAL | 2.2.1.2 | Pentose phosphate pathway | 0 | 0 | 0 | 0 |
LOX | 1.1.3.15 | Glyoxylate and dicarboxylate metabolism | 0 | 0 | 0 | 0 |
Aconitases | 4.2.1.3 | TCA cycle | 0 | 0 | 0.89 | 0.82 |
PGLP | 3.1.3.18 | Photorespiratory | 1 | 1 | 1 | 1 |
SPP | 3.1.3.24 | Sucrose biosynthesis | 1 | 1 | 1 | 1 |
Amylase isomerase | 2.4.1.18 | Transitory starch biosynthesis | 0 | 0 | 1 | 1 |
PEPC | 4.1.1.31 | C4 photosynthesis | 1 | 0 | 1 | 1 |
PPDK | 2.7.9.1 | C4 photosynthesis | 1 | 0.96 | 1 | 0.98 |