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SDS-PAGE showing a single band of purified dextransucrase on 10% acrylamide gel. (A) Molecular weight marker. (B) Culture supernatant of the bacterial culture. (C) Precipitated protein at 50% ammonium sulphate. (D) Precipitated protein at 55% ammonium sulphate. (E) Protein eluted from Sephadex G-200 gel column followed by PEG fractionation
