TABLE 1

Inhibitory and binding properties of the hits identified in the present study

Assay conditions are described under Materials and Methods. The results represent the average of triplicate measurements ± S.D.

HitResidual CYP46A1 ActivityaKdbKiIndication or Use
%μM
In silico prediction
    Bicalutamide35 ± 2.01.2 ± 0.05NMAntineoplastic
    Dexmedetomidine8.0 ± 0.30.02 ± 0.0050.13 ± 0.01Analgesic, sedative
    Epinephrine25 ± 2.0NSPNMAdrenergic stimulant
    Estradiol32 ± 6.0NSPNMSteroid hormone
    FLV (E-isomer)11 ± 0.20.7 ± 0.11.7 ± 0.3Antidepressant
    Isoproterenol25 ± 2.0NSPNMBronchodilator
    Mitomycin41 ± 1.0NSPNMAntineoplastic
    Testosterone49 ± 4.0NSPNMSteroid hormone
Intuitive predictions
Albaconazole35 ± 3.02.5 ± 0.1NMAntifungal
Ephedrine49 ± 2.0NSPNMBronchodilator
Hexaconazole46 ± 3.00.4 ± 0.02NMAntifungal
Posaconazole13 ± 1.20.3 ± 0.03NMAntifungal
Ravuconazole50 ± 3.00.6 ± 0.02NMAntifungal
  • NM, not measured; NSP, weak or no spectral response.

  • a Activity in the screening enzyme assay.

  • b Calculated on the basis of spectral binding.