Primary alcohol sulfatase in a Pseudomonas species

Abstract

An ammonium sulfate-precipitated fraction from cell-free extracts of Pseudomonas C12B grown on a medium containing sodium dodecyl sulfate (SDS) contained alkyl sulfatase increased fourfold in specific activity over the crude. Optimal pH (7.5) and temperature (70 C) for sulfate release were determined with SDS labeled with radioactive sulfur (SDS(35)) as test substrate. Phosphate, arsenate, and certain heavy metal ions inhibited desulfation, whereas Mg(++) and Mn(++) stimulated activity of preparations which had been dialyzed against ethylenediaminetetraacetic acid. Dodecanol was recovered in semiquantitative yield from reaction mixtures containing enzyme and SDS(35). Aryl sulfates, secondary alcohol sulfates, and a phenoxyethyl sulfate failed to serve as substrate for this enzyme.