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. Author manuscript; available in PMC: 2019 Jul 15.
Published in final edited form as: J Enzyme Inhib Med Chem. 2016 Jul 17;31(SUP2):148–161. doi: 10.1080/14756366.2016.1193734

Table 3.

Spectral binding properties for clotrimazole in recombinant CYP26A1, CYP26B1 and CYP2C8. Standard error values are reported for IC50, fu and Ks data.

CYP26A1 CYP26B1 CYP2C8
IC50 (nM) 24.7 ± 8.1 50.1 ± 12.1 725 ± 116
fu (IC50 assay) 0.661 ± 0.042 0.430 ± 0.031 0.155 ± 0.024
IC50,unb (nM) 16.3 21.5 112
Ks (nM) 533 ± 71.8 4954 ± 640 1574 ± 569
fu (spectral binding assay) 0.025 ± 0.001 0.005 ± 0.0006 0.048 ± 0.002
Ks,unb (nM) 13.3 24.7 75.5
Binding Mechanism Type II Type II Type II