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Francisella philomiragia

ABSTRACT: Causes disease in humans and fish

PROVIDER: PRJNA32525 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR1793660_subreads.fastq.gz	Fastqsanger.gz
	SRR1793658_1.fastq.gz	Fastqsanger.gz
	SRR1793658_2.fastq.gz	Fastqsanger.gz
	SRR1793659.fastq.gz	Fastqsanger.gz

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Francisella philomiragia subsp. philomiragia ATCC 25017

Project description:Causes bacteremia in patients with chronic granulomatous disease

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Class A carbapenemase FPH-1 from Francisella philomiragia.

Project description:FPH-1 is a new class A carbapenemase from Francisella philomiragia. It produces high-level resistance to penicillins and the narrow-spectrum cephalosporin cephalothin and hydrolyzes these β-lactam antibiotics with catalytic efficiencies of 10(6) to 10(7) M(-1) s(-1). When expressed in Escherichia coli, the enzyme confers resistance to clavulanic acid, tazobactam, and sulbactam and has K(i) values of 7.5, 4, and 220 μM, respectively, against these inhibitors. FPH-1 increases the MIC of the monobactam aztreonam 256-fold and the MIC of the broad-spectrum cephalosporin ceftazidime 128-fold, while the MIC of cefoxitin remains unchanged. MICs of the carbapenem antibiotics imipenem, meropenem, doripenem, and ertapenem are elevated 8-, 8-, 16-, and 64-fold, respectively, against an E. coli JM83 strain producing the FPH-1 carbapenemase. The catalytic efficiencies of the enzyme against carbapenems are in the range of 10(4) to 10(5) M(-1) s(-1). FPH-1 is 77% identical to the FTU-1 β-lactamase from Francisella tularensis and has low amino acid sequence identity with other class A β-lactamases. Together with FTU-1, FPH-1 constitutes a new branch of the prolific and ever-expanding class A β-lactamase tree.

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Complete genome sequence of Francisella philomiragia ATCC 25017.

Project description:Francisella philomiragia is a saprophytic gammaproteobacterium found only occasionally in immunocompromised individuals and is the nearest neighbor to the causative agent of tularemia and category A select agent Francisella tularensis. To shed insight into the key genetic differences and the evolution of these two distinct lineages, we sequenced the first complete genome of F. philomiragia strain ATCC 25017, which was isolated as a free-living microorganism from water in Bear River Refuge, Utah.

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Francisella philomiragia

Project description:Francisella philomiragia Genome sequencing

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Francisella philomiragia bacteremia in an immunocompromised patient: a rare case report.

Project description:BackgroundFrancisella philomiragia is a very rare opportunistic pathogen of humans which causes protean diseases such as pneumonia and other systemic infections. Subsequent failure of prompt treatment may result in poor prognosis with mortality among infected patients.Case presentationThe present report describes a case of F. philomiragia bacteraemia first reported in Malaysia and Asian in a 60-year-old patient with underlying end-stage renal disease (ESRF) and diabetes mellitus. He presented with Acute Pulmonary Oedema with Non-ST-Elevation Myocardial Infarction (NSTEMI) in our hospital. He was intubated in view of persistent type I respiratory failure and persistent desaturation despite post haemodialysis. Blood investigation indicated the presence of ongoing infection and inflammation. The aerobic blood culture growth of F. philomiragia was identified using the matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry (Score value: 2.16) and confirmed by 16S Ribosomal DNA (16S rDNA) sequencing. He was discharged well on day 26 of admission, after completing one week of piperacillin/tazobactam and two weeks of doxycycline.ConclusionClinical suspicion should be raised if patients with known risk factors are presenting with pneumonia or pulmonary nodules especially as these are the most common manifestations of F. philomiragia infection. Early diagnosis via accurate laboratory identification of the organism through MALDI-TOF mass spectrometry and molecular technique such as 16S rDNA sequencing are vital for prompt treatment that results in better outcomes for the afflicted patients.

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Genetically divergent <i>Francisella philomiragia</i> associated with septic arthritis, Montevideo, Uruguay.

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