Sodium-Independent Component | Sodium-Dependent Component | Linear Component Pdiff | |||
---|---|---|---|---|---|
Km | Vmax | Km | Vmax | ||
μM | nmol/min/mg protein | μM | nmol/min/mg protein | μl/min/mg protein | |
Regular | 16 ± 7.5 | 0.84 ± 0.22 | 49 ± 18 | 1.2 ± 0.39 | 2.7 ± 0.5 |
Periportal | 22 ± 28 | 0.70 ± 0.32 | 50 ± 45 | 1.4 ± 0.23 | 1.7 ± 0.8 |
Perivenous | 18 ± 19 | 0.71 ± 0.32 | 55 ± 34 | 1.1 ± 0.31 | 2.0 ± 0.6 |
↵4-a Both data obtained in presence and absence of sodium were force fit to eq. 4 and 2, respectively; a weighting of unity was optimal.