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Northern blot of Newman RNA samples isolated at various time points, probed with a DNA fragment containing both sbcDC genes. The positions of the RNA markers (Roche Applied Science) are shown on the left. The last lane indicates an RNA sample obtained from Newman incubated for 2 h in TSB at 37°C and treated with ciprofloxacin (Cpx) for an additional 2 h. The closely linked sbcDC genes are shown above the blot. rRNA as a loading control is shown below the blot.
