Table 4. Model predictions of resting steady state metabolite concentrations.
Steady state metabolite concentrations calculated for four cases: (i) no additional inhibition (original model); (ii) PFK and PK inhibition; (iii) PFK inhibition; (iv) PK inhibition.
State variable |
Initial conditionsa, b [mM] |
Original model [mM] (mean±sd) |
PFK and PK inhibition [mM] (mean±sd) |
PFK inhibition [mM] (mean±sd) |
PK inhibition [mM] (mean±sd) |
---|---|---|---|---|---|
G1P | 0,059a | 0,00056± 0,00024 |
0,025±0,011* | 0,025±0,012 $ | 0,00057±0,00025 |
G6P | 0,75a | 0,0094±0,0040 | 0,41±0,19* | 0,41±0,20 $ | 0,0094± 0,0041 |
F6P | 0,23a | 0,0042±0,0018 | 0,18±0,086* | 0,19±0,089 $ | 0,0042±0,0018 |
F-1,6P2 | 0,072a | 0,00028± 0,00020 |
0,18±0,30* | 2,46e-5±1,42e-5 | 0,41±0,46 # |
DHAP | 0,076a | 0,0011± 0,00045 |
0,020±0,022 | 0,00027±0,00011 | 0,037±0,026 |
GAP | 0,036a | 0,021±,0087 | 0,39±0,43 | 0,0053± 0,0021 | 0,71±0,50 |
13BPG | 0,065b | 0,0043± 3,97e-5 |
0,0032±0,00071 | 0,0025± 0,00058 | 0,0037±0,0010 |
P3G | 0,052a | 0,13±0,00021 | 0,20±0,042 | 0,12±0,0074 | 0,21±0,042 |
P2G | 0,0050b | 0,024±3,69e-5 | 0,036±0,0076 | 0,021±0,0013 | 0,039±0,0076 |
PEP | 0,019a | 0,012±1,45e-5 | 0,018±0,0037 | 0,010±0,00066 | 0,019±0,0037 |
PYR | 0,099a | 0,065±5,05e-5 | 0,012±0,015 | 0,088±0,010 | 0,0051±0,0096 |
LAC | 1,3a | 0,84±0,36 | 0,84±0,36 | 0,84±0,36 | 0,84±0,36 |
ATP | 8,2a | 8,20±5,0e-5 | 8,20±0,0046 | 8,21±0,0013 | 8,20±0,0051 |
ADP | 0,013a | 0,0045±5,0e-5 | 0,0098±0,0046 | 0,0070±0,0013 | 0,0095±0,0051 |
AMP | 2,0e-05a | 1,13e-6±2,5e-8 | 6,49e-6± 6,94e-6 |
2,82e-6±1,11e-6 | 6,47e-6±7,75e-6 |
Pi | 4,1a | 1,82±0,022 | 3,79±1,35 | 3,02±0,60 | 3,36±1,43 |
PCr | 34,7a | 38,26±0,037 | 34,85±2,56 | 36,49±0,89 | 35,09±2,89 |
NAD | 0,50a | 0,50±0,00017 | 0,47±0,044 | 0,50±0,00011 | 0,46±0,048 |
indicates improved model prediction as a result of PFK and PK inhibition.
indicates improved model prediction as a result of PFK inhibition.
indicates improved model prediction as a result of PK inhibition.
Concentration unreported for skeletal muscle. Estimated values are based upon orders of magnitude seen in other cell types.