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Export studies of doxorubicin from S. agalactiae wild-type strain 090R and cylA mutant strain cylAdel1. Bacterial cells were grown in the presence of doxorubicin (0.5 mg/liter). Export of doxorubicin into the supernatant was determined fluorometrically as detailed in Materials and Methods. Mean values and the standard deviation of eight independent experiments are shown.
