Table 2

Kinetic parameters for the in vitro interaction between BQ and testosterone

BQTestosterone 6β-HydroxylationTestosteroneBQ Dealkylation
Km2-aVmax2-aKmVmax
μM μM
058.6  ± 16.635.9  ± 5.0076.2  ± 26.725.2  ± 6.5
3.12554.8  ± 8.235.1  ± 2.53.12568.1  ± 9.825.0  ± 1.9
6.2595.5  ± 32.648.8  ± 10.06.2553.1  ± 15.022.5  ± 3.0
12.548.5  ± 18.333.4  ± 5.712.545.1  ± 4.524.6  ± 1.0
2557.1  ± 20.334.1  ± 5.92541.8  ± 4.722.5  ± 1.1
5059.3  ± 19.424.6  ± 3.95031.1  ± 3.319.6  ± 0.8
7544.7  ± 12.420.5  ± 2.57532.8  ± 2.520.2  ± 0.6
10042.1  ± 9.017.9  ± 1.610030.8  ± 5.520.4  ± 1.4
  • 2-a  Km (micromolar) andVmax (nanomoles per minute per nanomole) with standard errors.