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SDS-PAGE analysis of the recombinant B. adolescentis GH8 enzyme. SDS-PAGE of purified RexA shows a large protein band around 42 kDa (lane 1); the two weaker protein bands at ∼84 and ∼126 kDa disappear after 1% β-mercaptoethanol treatment (lane 3). Molecular masses of the low-molecular-mass markers (lane 2) are indicated on the right.
