Figure 1.
The Escherichia coli DNA gyrase cleavage assay. DNA gyrase was incubated with supercoiled pBR322 in the presence of 0.1 µg/ML ciprofloxacin (CFX) and/or 1 of the phosphodiesterase inhibitors (100 µM). Bands were separated using 1% agarose and visualized using ethidium bromide. Phosphodiesterase inhibitors (100 µM) did not affect antigyrase activity of 0.1 µg/mL CFX.