Nejvíce citovaný článek - PubMed ID 12821475
The complete nucleotide sequences of six IMP-4-encoding plasmids recovered from Enterobacteriaceae isolates of wildlife origin were characterized. Sequencing data showed that plasmids of different incompatibility groups (IncM, IncI1, IncF, and nontypeable [including an IncX5_2 and two pPrY2001-like]) carried the blaIMP-4-carrying integrons In809 or In1460. Most of the plasmids carried an mph(A) region, and chrA-like, aac(3)-IId, and blaTEM-1b genes. Finally, plasmid analysis revealed the involvement of two different IS26- and Tn1696-associated mechanisms in the mobilization of IMP-4-encoding integrons.
- Klíčová slova
- Enterobacter aerogenes, Escherichia coli, In1460, In809, IncF, IncI1, IncM, IncX5_2, Proteus mirabilis, Proteus penneri,
- MeSH
- antibakteriální látky farmakologie MeSH
- Enterobacteriaceae genetika patogenita MeSH
- enterobakteriální infekce mikrobiologie MeSH
- plazmidy genetika MeSH
- přenos genů horizontální genetika MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- antibakteriální látky MeSH
Ten Enterobacteriaceae isolates collected in a Czech hospital carried blaKPC-positive plasmids of different sizes (∼30, ∼45, and ∼80 kb). Sequencing revealed three types of plasmids (A to C) with the Tn4401a transposon. Type A plasmids comprised an IncR backbone and a KPC-2-encoding multidrug resistance (MDR) region. Type B plasmids were derivatives of type A plasmids carrying an IncN3-like segment, while type C plasmids were IncP6 plasmids sharing the same KPC-2-encoding MDR region with type A and B plasmids.
- Klíčová slova
- Citrobacter freundii, Illumina sequencing, IncR, ST18, Tn4401a,
- MeSH
- antibakteriální látky terapeutické užití MeSH
- beta-laktamasy genetika metabolismus MeSH
- Citrobacter freundii účinky léků enzymologie genetika izolace a purifikace MeSH
- enterobakteriální infekce farmakoterapie epidemiologie mikrobiologie MeSH
- Escherichia coli účinky léků enzymologie genetika izolace a purifikace MeSH
- exprese genu MeSH
- izoenzymy genetika metabolismus MeSH
- karbapenemy terapeutické užití MeSH
- Klebsiella pneumoniae účinky léků enzymologie genetika izolace a purifikace MeSH
- lidé MeSH
- mikrobiální testy citlivosti MeSH
- mnohočetná bakteriální léková rezistence genetika MeSH
- Morganella morganii účinky léků enzymologie genetika izolace a purifikace MeSH
- nemocnice MeSH
- otevřené čtecí rámce MeSH
- plazmidy chemie klasifikace metabolismus MeSH
- sekvence nukleotidů MeSH
- sekvenční analýza DNA MeSH
- transpozibilní elementy DNA MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika epidemiologie MeSH
- Názvy látek
- antibakteriální látky MeSH
- beta-lactamase KPC-2 MeSH Prohlížeč
- beta-laktamasy MeSH
- izoenzymy MeSH
- karbapenemy MeSH
- transpozibilní elementy DNA MeSH
A total of 18 Enterobacteriaceae (17 from gulls and 1 from a clinical sample) collected from Australia, carrying IncA/C plasmids with the IMP-encoding In809-like integrons, were studied. Seven plasmids, being representatives of different origins, plasmid sizes, replicon combinations, and resistance genes, were completely sequenced. Plasmid pEc158, identified in a clinical Escherichia coli ST752 isolate, showed extensive similarity to type 2 IncA/C2 plasmids. pEc158 carried none of the blaCMY-2-like region or ARI-B and ARI-A regions, while it contained a hybrid transposon structure. The six remaining plasmids, which were of wildlife origin, were highly similar to each other and probably were fusion derivatives of type 1 and type 2 A/C2 plasmids. The latter plasmids contained an ARI-B region and hybrid transposon structures. In all plasmids, hybrid transposon structures containing In809-like integrons were inserted 3,434 bp downstream of the rhs2 start codon. In all cases, the one outermost 38-bp inverted repeat (IR) of the transposon was associated with the Tn1696 tnp module, while the other outermost 38-bp IR of the transposon was associated with either a Tn6317-like module or a Tn21 mer module. However, the internal structure of the transposon and the resistance genes were different in each plasmid. These findings indicated that, for the specific periods of time and settings, different IncA/C2 plasmid types carrying In809-like elements circulated among isolates of wildlife and clinical origins. Additionally, they provided the basis for speculations regarding the reshuffling of IncA/C2 plasmids with In809-like integrons and confirmed the rapid evolution of IncA/C2 plasmid lineages.
- Klíčová slova
- Citrobacter freundii, Escherichia coli, IMP, Klebsiella pneumoniae, PMLST, metallo-β-lactamases,
- MeSH
- antibakteriální látky farmakologie MeSH
- beta-laktamasy genetika MeSH
- Charadriiformes mikrobiologie MeSH
- Citrobacter freundii genetika izolace a purifikace MeSH
- Escherichia coli genetika izolace a purifikace MeSH
- Klebsiella pneumoniae genetika izolace a purifikace MeSH
- lidé MeSH
- mikrobiální testy citlivosti MeSH
- mnohočetná bakteriální léková rezistence genetika MeSH
- obrácené repetice genetika MeSH
- plazmidy genetika MeSH
- sekvence nukleotidů MeSH
- sekvenční analýza DNA MeSH
- transpozibilní elementy DNA genetika MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Austrálie MeSH
- Názvy látek
- antibakteriální látky MeSH
- beta-laktamasy MeSH
- transpozibilní elementy DNA MeSH
Two multidrug resistance (MDR) plasmids, carrying the VIM-1-encoding integron In110, were characterized. Plasmid pLec-476cz (311,758 bp), from a Leclercia adecarboxylata isolate, consisted of an IncHI1 backbone, a MDR region, and two accessory elements. Plasmid pKpn-431cz (142,876 bp), from a sequence type 323 (ST323) Klebsiella pneumoniae isolate, comprised IncFIIY-derived and pKPN3-like sequences and a mosaic region. A 40,400-bp sequence of pKpn-431cz was identical to the MDR region of pLec-476cz, indicating the en bloc acquisition of the VIM-1-encoding region from one plasmid by the other.
- Klíčová slova
- IncFIIY, IncHI1, carbapenemases, integrative conjugative elements, metallo-β-lactamases,
- MeSH
- bakteriální proteiny genetika MeSH
- beta-laktamasy genetika MeSH
- beta-laktamová rezistence genetika MeSH
- DNA bakterií genetika MeSH
- integrony genetika MeSH
- Klebsiella pneumoniae účinky léků genetika MeSH
- lidé MeSH
- mnohočetná bakteriální léková rezistence genetika MeSH
- plazmidy genetika MeSH
- sekvence nukleotidů MeSH
- sekvenční analýza DNA MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
- Názvy látek
- bakteriální proteiny MeSH
- beta-laktamasy MeSH
- carbapenemase MeSH Prohlížeč
- DNA bakterií MeSH
- VIM-1 metallo-beta-lactamase MeSH Prohlížeč