Table 1

Kinetic parameters for the in vitro interaction between BFC and testosterone

BFCTestosterone 6β-HydroxylationTestosteroneBFC Dealkylation
Km1-aVmax1-aKmVmax
μM μM
049.6  ± 10.929.6  ± 3.0048.5  ± 4.849.3  ± 2.4
3.12578.0  ± 17.339.3  ± 4.73.12556.6  ± 13.363.2  ± 13.3
6.2566.8  ± 31.433.8  ± 8.16.2538.1  ± 12.155.8  ± 7.3
12.559.5  ± 15.431.5  ± 4.012.544.4  ± 7.860.5  ± 4.7
2567.0  ± 5.832.0  ± 1.42533.7  ± 5.755.0  ± 3.7
5054.5  ± 3.922.9  ± 0.75034.5  ± 5.452.3  ± 3.3
7552.5  ± 8.421.1  ± 1.67533.2  ± 6.850.1  ± 4.1
10044.8  ± 7.918.9  ± 1.510030.8  ± 4.843.6  ± 4.8
  • 1-a  Km (micromolar) andVmax (nanomoles per minute per nanomole) with standard errors.