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. 2001 Jul;45(7):1994–2000. doi: 10.1128/AAC.45.7.1994-2000.2001

TABLE 2.

Quinolone-induced DNA cleavage by gyrase

Compound Relative amt of drug required to induce 50% maximal DNA cleavage for mutanta
Ala83 Ala87 Ala83 Ala87
Ciprofloxacin 3.6 ± 0.2 3.9 ± 1.6 8.9 ± 1.8
PD0163449 1.4 ± 0 3.1 ± 0.4 4.3 ± 1.4
Norfloxacin 4.8 ± 1.0 4.4 ± 0.8 20.5 ± 1.6
a

Calculated as the amount of drug required to induce 50% maximal cleavage for the mutant divided by the amount required to induce 50% maximal cleavage for the WT.