Multiplex sequence analysis demonstrates the competitive growth advantage of the A-to-G mutants of clarithromycin-resistant Helicobacter pylori

被引:24
作者
Wang, G
Rahman, MS
Humayun, MZ
Taylor, DE [1 ]
机构
[1] Univ Alberta, Dept Med Microbiol & Immunol, Edmonton, AB T6G 2H7, Canada
[2] Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Microbiol & Mol Genet, Newark, NJ 07103 USA
关键词
D O I
10.1128/AAC.43.3.683
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Clarithromycin resistance in Helicobacter pylori is due to point mutation within the 23S rRNA. We examined the growth rates of different types of site-directed mutants and demonstrated quantitatively the competitive growth advantage of A-to-G mutants over other types of mutants by a multiplex sequencing assay. The results provide a rational explanation of why A-to-G mutants are predominantly observed among clarithromycin-resistant clinical isolates.
引用
收藏
页码:683 / 685
页数:3
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