Transient loss of high-level mupirocin resistance in Staphylococcus aureus due to MupA polymorphism

被引:16
作者
Driscoll, Daniel G. [1 ]
Young, Casey L. [1 ]
Ochsner, Urs A. [1 ]
机构
[1] Replidyne Inc, Dept Microbiol, Louisville, CO 80027 USA
关键词
D O I
10.1128/AAC.00241-07
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Spontaneous loss of MupA-mediated high-level mupirocin resistance was observed in Staphylococcus aureus, although the isolate gave a PCR-positive test result for mupA. Sequencing of the mupA gene identified a single base-pair deletion that resulted in a frameshift mutation and loss of functional protein. Reversion to the wild-type allele and restoration of high-level resistance occurred with high frequency (>10-6), indicating the transient nature of MupA polymorphism.
引用
收藏
页码:2247 / 2248
页数:2
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