Page 23 - Thermodynamics of Biochemical Reactions

16 Introduction to Apparent Equilibrium Constants

Table 1.3 pKs of Weak Acids at 298.15 K in Dilute Aqueous Solutions as a
Function of Ionic Strength (See Problem 1.10)

Z=OM I = 0.10 M Z = 0.25 M

acetate 4.75 4.54 4.47
acetylphosphate K , 8.69 8.26 8.12
acetylphosphate K, 5.1 1 4.90 4.83
adenine 4.20 4.20 4.20
ammonia 9.25 9.25 9.25
ATP K, 7.60 6.74 6.47
ATP K, 4.68 4.04 3.83
ADP K, 7.18 6.53 6.33
ADP K, 4.36 3.93 3.79
AMP K, 6.73 6.30 6.16
AMP K, 3.99 3.77 3.71
adenosine 3.47 3.47 3.47
bisphosphoglycerate 7.96 7.10 6.83
citrate K, 6.39 5.75 5.54
citrate K, 4.76 4.33 4.19
isocitrate K, 6.40 5.76 5.55
socitrate K, 4.76 4.33 4.19
coenzyme A 8.38 8.16 8.10
HCO, K, 10.30 9.90 9.76
HZCO, K, 6.37 6.15 6.08
cysteine 8.38 8.16 8.09
dihydroxyacetone phosphate 5.70 5.27 5.13
fructose 6-phosphate K , 6.27 5.84 5.70
fructose-l,6-biphosphate K, 6.65 5.79 5.52
fructose-] ,6-biphosphate K, 6.05 5.41 5.20
fumarate K 4.60 4.17 4.03
fumarate K, 3.09 2.88 2.81
galactose l-phosphate K , 6.15 5.72 5.58
glucose 6-phosphate K , 6.42 5.99 5.85
glutathione,,, 8.34 7.91 7.77
glucose 1 -phosphate K , 6.50 6.07 5.93
glyceraldehyde phosphate 5.70 5.27 5.13
glycerol 3-phosphate 6.67 6.24 6.10
malate K, 5.26 4.83 4.69
oxalate K, 4.28 3.85 3.71
phosphoenolpyruvate 7.00 6.36 6.15
2-phosphoglycerate 7.64 7.00 6.79
3-phosphoglycera te 7.53 6.89 6.68
phosphate K, 7.22 6.79 6.65
pyrophosphate K, 9.46 8.60 8.33
pyrophosphate K, 6.72 6.08 5.87
pyrophosphate K, 2.26 1.83 1.69
ribose 1 -phosphate K , 6.69 6.26 6.12
ribose 5-phosphate K,
succinate K , 6.69 6.26 6.12
5.64
5.07
5.21
succinate K, 4.21 3.99 3.92
succinylcoA 4.21 4.00 3.93
thioredoxin,,, K , 8.64 8.21 8.09
thioredoxin,,, K, 8.05 7.83 7.76