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SDS-PAGE analysis of fractions from the purification of (A) GOX0525 and (B) GOX1899. Lanes (1) Benchmark™ protein ladder (Invitrogen) serving as a molecular marker (2) cell-free extract, (3) flow-through, (4) 20 mM imidazole wash, (5) 150 mM imidazole elution. The band corresponding to the expected size of GOX0525 and GOX1899 are labelled accordingly.
