Bacterial Oxidation of Arsenite III. Cell-Free Arsenite Dehydrogenase

Abstract

A soluble, cell-free arsenite dehydrogenase is liberated from cells of strain 17 of the arsenite-oxidizing pseudomonad (Pseudomonas arsenoxydans-quinque) after grinding with powdered glass. The enzyme is moderately stable, retaining its activity for considerable periods on storage at· low temperatures. It may be dialysed without loss of activity, and withstands salting out.