ArticleAntimicrobial agents and chemotherapy2008
Genetic structures at the origin of acquisition of the beta-lactamase bla KPC gene.
Article in Antimicrobial agents and chemotherapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 259 papers, 1 of them a synthesis that pooled it.
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259 citing papers in PubMed, 1 synthesis or guideline pooled it, 524 citations in OpenAlex.
- Pharmacological aspects and spectrum of action of ceftazidime-avibactam: a systematic review.Infection · 2018Pooled it
- Epidemiology and molecular characterization of bacteremia due to carbapenem-resistant Klebsiella pneumoniae in transplant recipients.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2013Trial
- Genomic characterization ofMicrobiology (Reading, England) · 2026Article
- Genomic characterization of carbapenemase-producing Enterobacterales from wastewater reveals the convergence of KPC-2 and GES-16 in Brazil.Environmental monitoring and assessment · 2026Article
- Clonal dissemination and plasmid plasticity of KPC-3-producing Klebsiella pneumoniae ST512 during a hospital outbreak in Spain.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026Article
- TnMicrobial genomics · 2026Article
- Advancements in Technologies Targeting Horizontal Gene TransferRoutes to Control Drug Resistance Evolution.ACS bio & med chem Au · 2026Review
- Genomics of Hospital-Associated Brazilian Multidrug-Resistant Klebsiella pneumoniae: Abundance of Resistance and Virulence Genes and Mosaicism of the blaCurrent microbiology · 2026Article
- Genomic and molecular characterisation of a KPC-producing Klebsiella pneumoniae clinical isolate resistant to meropenem-vaborbactam, imipenem-relebactam, and ceftazidime-avibactam.BMC genomic data · 2026Article
- Expanding Threat of Carbapenemase-ProducingbioRxiv : the preprint server for biology · 2026Article
- Mobile Genetic Elements as Central Drivers of Antimicrobial Resistance: Molecular Mechanisms, Evolutionary Ecology, One Health Implications and Control Strategies.Antibiotics (Basel, Switzerland) · 2026Review
- Within-host co-evolution of KPC variants: plasmid-mediated dissemination ofMicrobiology spectrum · 2026Article
- Genetically Similar High-Risk Strains of Carbapenemase-Producing Enterobacterales in Humans and Companion Animals, United States.Emerging infectious diseases · 2026Article
- Silent Waterborne Carriers of Carbapenem-Resistant Gram-Negative Bacilli and Antimicrobial Resistance Genes in Rio de Janeiro's Aquatic Ecosystems.Antibiotics (Basel, Switzerland) · 2026Article
- Harnessing interpretable deep learning to predict resistance inFrontiers in cellular and infection microbiology · 2026Article
- Genomic epidemiology of carbapenemase-producingMicrobial cell (Graz, Austria) · 2026Article
- Review
- Plasmid-mediated carbapenem resistance: global dissemination patterns and replicon-gene associations.International microbiology : the official journal of the Spanish Society for Microbiology · 2025Article
- Continuity of carbapenem resistance determinants in carioca river and Rodrigo de Freitas Lagoon, Rio de Janeiro, Brazil, after decade.Scientific reports · 2025Article
- Molecular Characterization of Carbapenemase Genes in Carbapenem-Resistant Klebsiella pneumoniae Isolates.Current microbiology · 2025Article
199 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genetic structures surrounding the carbapenem-hydrolyzing Ambler class A bla KPC gene were characterized in several KPC-positive Klebsiella pneumoniae and Pseudomonas aeruginosa strains isolated from the United States, Colombia, and Greece. The bla KPC genes were associated in all cases with transposon-related structures. In the K. pneumoniae YC isolate from the United States, the beta-lactamase bla KPC-2 gene was located on a novel Tn3-based transposon, Tn4401. Tn4401 was 10 kb in size, was delimited by two 39-bp imperfect inverted repeat sequences, and harbored, in addition to the beta-lactamase bla KPC-2 gene, a transposase gene, a resolvase gene, and two novel insertion sequences, ISKpn6 and ISKpn7. Tn4401 has been identified in all isolates. However, two isoforms of this transposon were found: Tn4401a was found in K. pneumoniae YC and K. pneumoniae GR from the United States and Greece, respectively, and differed by a 100-bp deletion, located just upstream of the bla KPC-2 gene, compared to the sequence of Tn4401b, which was found in the Colombian isolates. In all isolates tested, Tn4401 was flanked by a 5-bp target site duplication, the signature of a recent transposition event, and was inserted in different open reading frames located on plasmids that varied in size and nature. Tn4401 is likely at the origin of carbapenem-hydrolyzing beta-lactamase KPC mobilization to plasmids and its further insertion into various-sized plasmids identified in nonclonally related K. pneumoniae and P. aeruginosa isolates.
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