Identification of mutations related to streptomycin resistance in clinical isolates of Mycobacterium tuberculosis and possible involvement of efflux mechanism.

Fernanda S Spies, Pedro E Almeida da Silva, Marta O Ribeiro, Maria Lucia Rossetti, Arnaldo Zaha
Author Information
  1. Fernanda S Spies: Programa de Pós-graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.

Abstract

The MIC for streptomycin in the presence of efflux pump (EP) inhibitors and the sequencing of rpsL, rrs, and gidB genes provided evidence for the possible participation of EP in low-level streptomycin (STR) resistance of some isolates without mutations. Mutation in the gidB gene and an EP could act synergistically to confer low STR resistance.

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MeSH Term

Anti-Bacterial Agents
Bacterial Proteins
DNA Mutational Analysis
Humans
Microbial Sensitivity Tests
Mutation
Mycobacterium tuberculosis
Streptomycin
Tuberculosis
Tuberculosis, Multidrug-Resistant

Chemicals

Anti-Bacterial Agents
Bacterial Proteins
Streptomycin

Word Cloud

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