SDS-PAGE of protein fractions collected during
purification containing putative benzoyl-CoA oxygenase. Lane 1,
molecular mass protein standards (see Materials and Methods); lane 2,
cell extract (supernatant after centrifugation at 100,000 ×
g; 25 μg of protein); lane 3, DEAE pool (25 μg of protein);
lanes 4 to 6, Q-Sepharose active fractions (20 μg of protein); lanes
7 and 8; Cibacron blue active fractions (9 μg of protein).