Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1999 Apr;43(4):954-6.
doi: 10.1128/AAC.43.4.954.

Mutations in the gyrA, parC, and parE genes associated with fluoroquinolone resistance in clinical isolates of Mycoplasma hominis

Affiliations

Mutations in the gyrA, parC, and parE genes associated with fluoroquinolone resistance in clinical isolates of Mycoplasma hominis

C M Bebear et al. Antimicrob Agents Chemother. 1999 Apr.

Abstract

Five clinical isolates of Mycoplasma hominis from three different patients were examined for resistance to fluoroquinolones; some of these isolates were probably identical. All five isolates harbored amino acid substitutions in the quinolone resistance-determining regions of both DNA gyrase (GyrA) and topoisomerase IV (ParC or ParE). Furthermore, the novobiocin MIC for three isolates showed a significant increase. This is the first characterization of fluoroquinolone-resistant clinical mycoplasma isolates from humans.

PubMed Disclaimer

References

    1. Bébéar C M, Bové J M, Bébéar C, Renaudin J. Characterization of Mycoplasma hominis mutations involved in resistance to fluoroquinolones. Antimicrob Agents Chemother. 1997;41:269–273. - PMC - PubMed
    1. Bébéar C M, Charron A, Bové J M, Bébéar C, Renaudin J. Cloning and nucleotide sequence of the topoisomerase IV parC and parE genes of Mycoplasma hominis. Antimicrob Agents Chemother. 1998;42:2024–2031. - PMC - PubMed
    1. Bébéar C M, Renaudin H, Charron A, Bové J M, Bébéar C, Renaudin J. Alterations in topoisomerase IV and DNA gyrase in quinolone-resistant mutants of Mycoplasma hominis obtained in vitro. Antimicrob Agents Chemother. 1998;42:2304–2311. - PMC - PubMed
    1. Breines D M, Ouabdesselam S, Ng E Y, Tankovic J, Shah S, Soussy C J, Hooper D C. Quinolone resistance locus nfxD of Escherichia coli is a mutant allele of the parE gene encoding a subunit of topoisomerase IV. Antimicrob Agents Chemother. 1997;41:175–179. - PMC - PubMed
    1. Contreras A, Maxwell A. gyrB mutations which confer coumarin resistance also affect DNA supercoiling and ATP hydrolysis by Escherichia coli DNA gyrase. Mol Microbiol. 1992;6:1617–1624. - PubMed

LinkOut - more resources