Table 7.
Predicted baseline solute concentrations
Cytosolic Concentrations |
Microdomain Concentrations |
|||
---|---|---|---|---|
Case 1 | Case 2 | Case 1 | Case 2 | |
[NO] | 93 nM | 93 nM | 93 nM | ∼0 |
[cGMP] | 9.0 μM | 9.0 μM | 9.0 μM | ∼0 |
[O2−] | 0.83 nM | 0.83 nM | 0.83 nM | ∼0 |
[H2O2] | 50 nM | 50 nM | 50 nM | ∼0 |
[Ca] | 108 nM | 105 nM | 154 nM | 372 nM |
[Na] | 8.8 mM | 9.2 mM | 16.2 mM | 20.7 mM |
[K] | 144 mM | 141 mM | 143 mM | 131 mM |
[Cl] | 26 mM | 23 mM | 23 mM | 17 mM |
Case 1 assumes that the concentration of NO and reactive oxygen species (ROS) in subplasmalemmal microdomains is equal to that in the cytosol, whereas case 2 assumes that NO and ROS microdomain concentrations are negligible.