1.1.1.311 (R)-1-phenylethanol 0.05 mM, 50% inhibition of acetophenone reduction activity 6838 1.1.1.311 (R)-1-phenylethanol oxidation of (S)-1-phenylethanol is completely inhibited in the presence of tenfold higher concentrations of (R)-1-phenylethanol 6838 1.1.1.311 additional information the presence of 10 mM EDTA (10 mM), 1 mM pyrazole or 1 mM 1,10-phenanthroline in enzyme assays does not affect the activity, indicating that the enzyme does not contain easily accessible bivalent metal ions. (S)-1-phenylethanol oxidation is not inhibited by 0.1 mM 5,5'-dithiobis-(2-nitrobenzoic acid), 1 mM 4-hydroxymercuribenzoic acid or 1 mM N-ethylmaleimide, indicating that no accessible cysteine residues are required for catalysis 2