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Klebsiella pneumoniae subsp. pneumoniae

ABSTRACT: Nosocomial outbreak by NDM carbapenemase-producing Klebsiella pneumoniae clone with inactivated cirA siderophore receptor gene, highly resistant to cefiderocol

PROVIDER: PRJNA887042 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21822752_1.fastq.gz	Fastqsanger.gz
	SRR21822752_2.fastq.gz	Fastqsanger.gz
	SRR21822753_1.fastq.gz	Fastqsanger.gz
	SRR21822753_2.fastq.gz	Fastqsanger.gz
	SRR21822754_1.fastq.gz	Fastqsanger.gz

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Project description:Antibiotic resistance associated with the expression of the clinically significant carbapenemases, IMP, KPC, and NDM and OXA-48 in Enterobacteriaceae is emerging as a worldwide calamity to health care. In Australia, IMP-producing Enterobacteriaceae is the most prevalent carbapenemase-producing Enterobacteriaceae (CPE). Genomic characteristics of such carbapenemase-producing Enterobacteriaceae (CPE) are well described, but the corresponding proteome is poorly characterised. We have thus developed a method to analyse dynamic changes in the proteome of CPE under antibiotic pressure. Specifically, we have investigated the effect of meropenem at sub-lethal concentrations to develop a better understanding of how antibiotic pressure leads to resistance. Escherichia coli, producing either NDM, IMP or KPC type carbapenemase were included in this study, and their proteomes were analysed in growth conditions with or without meropenem.

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Klebsiella pneumoniae

Project description:Klebsiella pneumoniae with silent NDM-1 carbapenemase gene

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Characterization of plasmids mediating carbapenem resistance in Klebsiella pneumoniae in Pretoria, South Africa

Project description:The study aimed to characterize plasmids mediating carbepenem resistance in Klebsiella pneumoniae in Pretoria, South Africa. We analysed 56 K. pneumoniae isolates collected from academic hospital around Pretoria. Based on phenotypic and molecular results of these isolates, 6 representative isolates were chosen for further analysis using long reads sequencing platform. We observed multidrug resistant phenotype in all these isolates, including resistance to aminoglycosides, tetracycline, phenicol, fosfomycin, floroquinolones, and beta-lactams antibiotics. The blaOXA-48/181 and blaNDM-1/7 were manily the plasmid-mediated carbapenemases responsible for carbapenem resistance in the K. pneumoniae isolates in these academic hospitals. These carbapenemase genes were mainly associated with plasmid replicon groups IncF, IncL/M, IncA/C, and IncX3. This study showed plasmid-mediated carbapenemase spread of blaOXA and blaNDM genes mediated by conjugative plasmids in Pretoria hospitals.

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