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Eis Promoter C14G and C15G Mutations Do Not Confer Kanamycin Resistance in Mycobacterium tuberculosis.


ABSTRACT: We studied the significance of particular eis mutations on Mycobacterium tuberculosis drug resistance using a specialized transduction strategy. Recombinant strains harboring eis promoter mutations C14T, C12T, and G10A exhibited kanamycin resistance with MICs of 40, 10, and 20 ?g/ml, respectively, while recombinant strains harboring C14G and C15G mutations were kanamycin susceptible (MIC, 2.5 to 5 ?g/ml). Each of the eis mutants tested remained amikacin susceptible (MIC, 0.5 to 4 ?g/ml). The identification of specific eis mutations is needed for accurate genotypic susceptibility testing for kanamycin.

SUBMITTER: Pholwat S 

PROVIDER: S-EPMC5119041 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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eis Promoter C14G and C15G Mutations Do Not Confer Kanamycin Resistance in Mycobacterium tuberculosis.

Pholwat Suporn S   Stroup Suzanne S   Heysell Scott S   Ogarkov Oleg O   Zhdanova Svetlana S   Ramakrishnan Girija G   Houpt Eric E  

Antimicrobial agents and chemotherapy 20161121 12


We studied the significance of particular eis mutations on Mycobacterium tuberculosis drug resistance using a specialized transduction strategy. Recombinant strains harboring eis promoter mutations C14T, C12T, and G10A exhibited kanamycin resistance with MICs of 40, 10, and 20 μg/ml, respectively, while recombinant strains harboring C14G and C15G mutations were kanamycin susceptible (MIC, 2.5 to 5 μg/ml). Each of the eis mutants tested remained amikacin susceptible (MIC, 0.5 to 4 μg/ml). The ide  ...[more]

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