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Pharmacology Anti Microbial e069f4b5

Mechanism of action of quinolones is?

A
DNA gyrase inhibitors
B
Bind to 30 s unit
C
Bind to bacterial cell membrane
D
Bind to tetrahydofolate reductase
High-Yield Explanation
ANSWER: (A) DNA gyrase inhibitorsREF: Goodman G ill man s 11th ed p. 722The quinolone antibiotics target bacterial DNA gyrase and topoisomerase IV. For many gram positive bacteria, topoisomerase IV is the primary target. For many gram-negative bacteria, DNA gyrase is the primary quinolone target.

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