Table 3

Metabolism of RPR 106541 by CYP3A4 mutants expressed in E. coli

Sample Purified PreparationsR-Sulfoxide FormationS-Sulfoxide FormationRatio
nmol/min/nmol CYP nmol/min/nmol CYP (R:S-sulfoxide formation)
 WT3A49.9311.100.89
SRS 2
 L210A2.249.250.24
 L211A4.818.800.55
 L211F8.879.330.95
 D214E10.4210.051.04
SRS 4
 I301A4.5610.740.42
 F304A3.6214.530.25
 A305G7.2616.740.43
 A305V1.648.130.20
 T309A11.2013.550.83
SRS 5
 I369V10.8610.061.08
 A370V4.7720.980.23
 L373A8.077.181.12
SRS 6
 G480Q4.026.570.61
 L479F4.9011.800.42

Assays were conducted as described in Materials and Methodssection for Mutant Enzyme Assays. Values are average of duplicate samples.