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SDS-PAGE of the different steps in the purification of α-glucuronidase. Lane 1, low-molecular-mass standard proteins; lane 2, starting material; lane 3, 45% ammonium sulfate precipitate; lane 4, Phenyl Sepharose FF pool; lane 5, Q-Sepharose pool; lane 6, Superdex 200 PG pool; lane 7, Mono Q pool; lane 8, Butyl Sepharose pool; lane 9, Poros 10 HQ pool.
