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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Exp Physiol. 2009 Oct 2;95(2):380–397. doi: 10.1113/expphysiol.2009.049841

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.

b

Concentration unreported for skeletal muscle. Estimated values are based upon orders of magnitude seen in other cell types.