Article
Ciprofloxacin affects conformational equilibria of DNA gyrase A in the presence of magnesium ions.
Journal of molecular biology - 3 Aug 2001
Sissi C, Perdonà E, Domenici E, Feriani A, Howells A J, Maxwell A, Palumbo M
Abstract excerpt
The conformational equilibria of the A subunit of DNA gyrase (GyrA), of its 59 kDa N-terminal fragment (GyrA59) and of the quinolone-resistant Ser-Trp83 mutant (GyrATrp83), were investigated in the presence of mono- and divalent metal ions and ciprofloxacin, a clinically useful antibacterial quinolone. The stability of the proteins was estimated from temperature denaturation, monitoring unfolding with circular...
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