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Effects of stabilizing additives on the stability of haloalkane dehalogenase DhmA stored at 4°C. Crude extracts without additives (•), with 10% glycerol (▴), with 1 mM EDTA (▪), and with 0.1 mM mercaptoethanol (♦) were tested. Activities were determined with the substrate 1,3-dibromopropane at 37°C and pH 7.5.
