Silent Mutation in rpoB Detected from Clinical Samples with Rifampin-Susceptible Mycobacterium tuberculosis
نویسندگان
چکیده
منابع مشابه
Occurrence of rpoB mutations in isoniazid-resistant but rifampin-susceptible Mycobacterium tuberculosis isolates from Germany.
Four out of 143 phenotypically isoniazid-resistant but rifampin-susceptible Mycobacterium tuberculosis strains that were isolated from patients in Germany in 2011 had mutations in the rifampin resistance-determining region of rpoB. After performing drug susceptibility testing (DST) with two methods, the proportion method on Löwenstein-Jensen medium and using the Bactec 960 Mycobacteria Growth I...
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There is a geographic distribution of Mycobacterium tuberculosis strains with various rpoB gene mutations that account for rifampin resistance. We studied 17 rifampin-resistant clinical isolates from patients in Greece to identify rpoB mutations. The aim of our study was the evaluation of a commercially available line probe assay kit (INNO-LiPA Rif. TB) to detect rpoB mutations and rifampin res...
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This study investigated mutations in the rpoB gene of rifampin-resistant isolates obtained from patients living in Eastern Poland. A total of 37 phenotypically and/or genotypically confirmed M. tuberculosis rifampin-resistant clinical isolates were included in this study. The strains were selected from symptomatic patients with a diagnosis of pulmonary and extrapulmonary tuberculosis. A line pr...
متن کاملHigh frequency of mutations in the rpoB gene in rifampin-resistant clinical isolates of Mycobacterium tuberculosis from Singapore.
Rifampin (RIF) is a first-line antituberculosis drug. Resistance to RIF, in the majority of cases, has been associated with mutations within an 81-bp RIF resistance-determining region (RRDR) of the rpoB gene, which encodes the subunit of the RNA polymerase (8). RIF acts by binding to the subunit of the RNA polymerase, thus interfering with transcription and RNA elongation. Although targeted mol...
متن کاملRifampin resistance in Mycobacterium kansasii is associated with rpoB mutations.
Rifampin is the most potent drug used in the treatment of disease due to Mycobacterium kansasii. A 69-bp fragment of rpoB, the gene that encodes the beta subunit of the bacterial RNA polymerase, was sequenced and found to be identical in five rifampin-susceptible clinical isolates of M. kansasii. This sequence showed 87% homology with the Mycobacterium tuberculosis gene, with an identical deduc...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2011
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.05314-11