Origin of the plasmid-mediated fosfomycin resistance gene fosA3

Ryota Ito, Marissa P. Pacey, Roberta T. Mettus, Nicolas Sluis-Cremer, Yohei Doi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background: FosA3 is the most commonly reported plasmid-mediated fosfomycin resistance gene among Enterobacteriaceae. Objectives: To identify the origin of fosA3. Methods: The chromosome of Kluyvera georgiana clinical strain YDC799 was fully sequenced with singlemolecule real-time sequencing. Comparative genetic analysis was performed for K. georgiana YDC799, K. georgiana type strain ATCC 51603 and representative fosA3-carrying plasmids. fosA genes were cloned in Escherichia coli to confirm function. Results: K. georgiana YDC799 harboured fosA (designated fosA KG ) and bla CTX-M-8 on the chromosome. The genetic environments surrounding fosA3 and bounded by IS26 were nearly identical with the corresponding regions of K. georgiana YDC799 and ATCC 51603. The amino acid sequence of FosA KG from YDC799 and K. georgiana ATCC 51603 shared 99% and 94% identity with FosA3, respectively. Cloned FosA KG conferred fosfomycin resistance with an MIC of.1024 mg/L for E. coli. Conclusions: The plasmid-mediated fosA3 gene was likely mobilized from the chromosome of K. georgiana by an IS26-mediated event.

Original languageEnglish
Pages (from-to)373-376
Number of pages4
JournalJournal of Antimicrobial Chemotherapy
Volume73
Issue number2
DOIs
Publication statusPublished - 01-01-2018

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Fosfomycin
Plasmids
Chromosomes
Kluyvera
Escherichia coli
Genes
Enterobacteriaceae
Amino Acid Sequence

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Microbiology (medical)
  • Pharmacology (medical)
  • Infectious Diseases

Cite this

Ito, Ryota ; Pacey, Marissa P. ; Mettus, Roberta T. ; Sluis-Cremer, Nicolas ; Doi, Yohei. / Origin of the plasmid-mediated fosfomycin resistance gene fosA3. In: Journal of Antimicrobial Chemotherapy. 2018 ; Vol. 73, No. 2. pp. 373-376.
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abstract = "Background: FosA3 is the most commonly reported plasmid-mediated fosfomycin resistance gene among Enterobacteriaceae. Objectives: To identify the origin of fosA3. Methods: The chromosome of Kluyvera georgiana clinical strain YDC799 was fully sequenced with singlemolecule real-time sequencing. Comparative genetic analysis was performed for K. georgiana YDC799, K. georgiana type strain ATCC 51603 and representative fosA3-carrying plasmids. fosA genes were cloned in Escherichia coli to confirm function. Results: K. georgiana YDC799 harboured fosA (designated fosA KG ) and bla CTX-M-8 on the chromosome. The genetic environments surrounding fosA3 and bounded by IS26 were nearly identical with the corresponding regions of K. georgiana YDC799 and ATCC 51603. The amino acid sequence of FosA KG from YDC799 and K. georgiana ATCC 51603 shared 99{\%} and 94{\%} identity with FosA3, respectively. Cloned FosA KG conferred fosfomycin resistance with an MIC of.1024 mg/L for E. coli. Conclusions: The plasmid-mediated fosA3 gene was likely mobilized from the chromosome of K. georgiana by an IS26-mediated event.",
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Origin of the plasmid-mediated fosfomycin resistance gene fosA3. / Ito, Ryota; Pacey, Marissa P.; Mettus, Roberta T.; Sluis-Cremer, Nicolas; Doi, Yohei.

In: Journal of Antimicrobial Chemotherapy, Vol. 73, No. 2, 01.01.2018, p. 373-376.

Research output: Contribution to journalArticle

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N2 - Background: FosA3 is the most commonly reported plasmid-mediated fosfomycin resistance gene among Enterobacteriaceae. Objectives: To identify the origin of fosA3. Methods: The chromosome of Kluyvera georgiana clinical strain YDC799 was fully sequenced with singlemolecule real-time sequencing. Comparative genetic analysis was performed for K. georgiana YDC799, K. georgiana type strain ATCC 51603 and representative fosA3-carrying plasmids. fosA genes were cloned in Escherichia coli to confirm function. Results: K. georgiana YDC799 harboured fosA (designated fosA KG ) and bla CTX-M-8 on the chromosome. The genetic environments surrounding fosA3 and bounded by IS26 were nearly identical with the corresponding regions of K. georgiana YDC799 and ATCC 51603. The amino acid sequence of FosA KG from YDC799 and K. georgiana ATCC 51603 shared 99% and 94% identity with FosA3, respectively. Cloned FosA KG conferred fosfomycin resistance with an MIC of.1024 mg/L for E. coli. Conclusions: The plasmid-mediated fosA3 gene was likely mobilized from the chromosome of K. georgiana by an IS26-mediated event.

AB - Background: FosA3 is the most commonly reported plasmid-mediated fosfomycin resistance gene among Enterobacteriaceae. Objectives: To identify the origin of fosA3. Methods: The chromosome of Kluyvera georgiana clinical strain YDC799 was fully sequenced with singlemolecule real-time sequencing. Comparative genetic analysis was performed for K. georgiana YDC799, K. georgiana type strain ATCC 51603 and representative fosA3-carrying plasmids. fosA genes were cloned in Escherichia coli to confirm function. Results: K. georgiana YDC799 harboured fosA (designated fosA KG ) and bla CTX-M-8 on the chromosome. The genetic environments surrounding fosA3 and bounded by IS26 were nearly identical with the corresponding regions of K. georgiana YDC799 and ATCC 51603. The amino acid sequence of FosA KG from YDC799 and K. georgiana ATCC 51603 shared 99% and 94% identity with FosA3, respectively. Cloned FosA KG conferred fosfomycin resistance with an MIC of.1024 mg/L for E. coli. Conclusions: The plasmid-mediated fosA3 gene was likely mobilized from the chromosome of K. georgiana by an IS26-mediated event.

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