Halophilic protein stabilization by the mild solubilizing agents nondetergent sulfobetaines

In this work, experiments performed on pig heart and halophilic malate dehydrogenase as well as halophilic elongation factor Tu demonstrate a protein stabilization property from the recently described mild solubilizing agents nondetergent sulfobetaines. A practical application is given by the separation of halophilic bacteria elongation factor Tu and halophilic malate dehydrogenase by high-performance ion-exchange chromatography achieved at reduced salt levels without significant loss of activity.