Molecular analysis of linezolid resistance in clinical Enterococcus faecium isolates by polymerase chain reaction and pyrosequencing

Resistance to linezolid has been associated with a G2576T mutation in the 23 S rRNA gene. Clinical isolates of linezolid-sensitive and linezolid-resistant vancomycin-resistant Enterococcus faecium of a liver transplant patient have been analysed for the G2576T mutation by polymerase chain reaction r...

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Hauptverfasser: Schnitzler, Paul (VerfasserIn) , Schulz, K. (VerfasserIn) , Lampson, Christian (VerfasserIn) , Geiss, M. (VerfasserIn) , Geiss, Heinrich K. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: [2011]
In: European journal of clinical microbiology & infectious diseases
Year: 2011, Jahrgang: 30, Heft: 1, Pages: 121-125
ISSN:1435-4373
DOI:10.1007/s10096-010-1046-4
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10096-010-1046-4
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Verfasserangaben:P. Schnitzler, K. Schulz, C. Lampson, M. Geiss, H. K. Geiss

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520 |a Resistance to linezolid has been associated with a G2576T mutation in the 23 S rRNA gene. Clinical isolates of linezolid-sensitive and linezolid-resistant vancomycin-resistant Enterococcus faecium of a liver transplant patient have been analysed for the G2576T mutation by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP), conventional sequencing and pyrosequencing. A clear association between the number of mutated 23 S rRNA genes and the level of linezolid resistance has been demonstrated. Linezolid susceptibility re-emerged after cessation of linezolid therapy; however, the re-initiation of linezolid therapy resulted in the re-emergence of linezolid-resistant strains. Pyrosequencing rapidly detected the number of mutated alleles and is superior to conventional PCR-RFLP for the detection of heterozygous mutations. 
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650 4 |a Peptidyl Transferase Centre 
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