%0 Journal Article %T Site-directed mutagenesis of cytochrome P450s CYP2A1 and CYP2A2: influence of the distal helix on the kinetics of testosterone hydroxylation. %A Hanioka, N %A Gonzalez, F J %A Lindberg, N A %A Liu, G %A Gelboin, H V %A Korzekwa, K R %J Biochemistry %V 31 %N 13 %P 3364-70 %@ 0006-2960 %D 1992-05-06 %~ DeepDyve