Discrepancy between the antibacterial activities and the inhibitory effects on Micrococcus luteus DNA gyrase of 13 quinolones.

Abstract:

:Thirteen quinolone antibacterial agents were investigated as to their ability to inhibit Micrococcus luteus DNA gyrase and cell growth, and compared to those of novobiocin and coumermycin. Among the quinolones tested, the most active were found to be CI-934 and ciprofloxacin, which inhibited gyrase full supercoiling activity at concentrations of 100 and 200 micrograms/ml, respectively, while inhibiting cell growth at a concentration of 1 microgram/ml. However, both novobiocin and coumermycin inhibited gyrase full supercoiling activity at concentrations of 0.5 and 1.0 microgram/ml, respectively, which were comparable to those concentrations causing inhibition of cell growth.

journal_name

Chemotherapy

journal_title

Chemotherapy

authors

Fu KP,Grace ME,McCloud SJ,Gregory FJ,Hung PP

doi

10.1159/000238458

subject

Has Abstract

pub_date

1986-01-01 00:00:00

pages

494-8

issue

6

eissn

0009-3157

issn

1421-9794

journal_volume

32

pub_type

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