Class I integrons containing a dhfrI trimethoprim resistance gene cassette in aquatic Acinetobacter spp.
نویسندگان
چکیده
منابع مشابه
Gene cassettes and cassette arrays in mobile resistance integrons.
Gene cassettes are small mobile elements, consisting of little more than a single gene and recombination site, which are captured by larger elements called integrons. Several cassettes may be inserted into the same integron forming a tandem array. The discovery of integrons in the chromosome of many species has led to the identification of thousands of gene cassettes, mostly of unknown function...
متن کاملHigh prevalence of trimethoprim-resistance cassettes in class 1 and 2 integrons in Senegalese Shigella spp isolates.
BACKGROUND Integrons have a well-established role in the dissemination of resistance among Gram-negative pathogens and are thus a useful marker of antibiotic resistance. Shigellae are noteworthy for their multiple drug resistance, having gradually acquired resistance to most widely use and inexpensive antimicrobial drugs. METHODOLOGY A total of 32 Shigella strains belonging to serotypes flexn...
متن کاملGene cassette arrays, antibiotic susceptibilities, and clinical characteristics of Acinetobacter baumannii bacteremic strains harboring class 1 integrons.
BACKGROUND AND PURPOSE Acinetobacter baumannii isolates containing class 1 integrons belong to different clones, but only a few strains are successful at causing infection. This study was conducted to compare the characteristics among these clones with different epidemicity. METHODS Eighty eight bacteremic isolates of A. baumannii were collected in a medical center in Taiwan during a 3-year p...
متن کاملIdentical miniature inverted repeat transposable elements flank class 1 integrons in clinical isolates of Acinetobacter spp.
Miniature inverted repeat transposable elements (MITEs) have been identified flanking class 1 integrons. We have identified and characterized a 439-bp MITE-like structure in seven Acinetobacter species isolates from Portugal and Brazil. The complete sequence similarity of the elements and flanking regions suggests that MITEs may act as mobilizable vectors for the dissemination of integrons.
متن کاملDetection and characterization of class 1 integrons among carbapenem-resistant isolates of Acinetobacter spp. in Malaysia.
BACKGROUND AND PURPOSE To detect and characterize class 1 integrons among carbapenem-resistant strains of Acinetobacter spp. at University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia. METHODS Thirty nine carbapenem-resistant Acinetobacter strains were obtained from UMMC from August 2003 to March 2004 and analyzed for the presence of bla(IMP) genes and class 1 integrons. RESULTS Cla...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 2000
ISSN: 0378-1097
DOI: 10.1016/s0378-1097(99)00563-7