[3H]DA uptake in WT and α4(-/-) mice Vmax is defined as the maximal rate of [3H]DA uptake under the present experimental conditions.**, p ≤ 0.01, significantly different from WT values, unpaired t test.
| Km | Vmax | |
|---|---|---|
| nM | fmol/mg protein/min | |
| WT | 174.3 ± 15.6 | 3083.7 ± 188.5 |
| α4 (–/–) | 292.8 ± 19.3** | 3058.0 ± 114.4 |