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A novel Tn3-like composite transposon harbouring blaVIM-1 in Klebsiella pneumoniae ssp. pneumoniae isolated from river water


Zurfluh, Katrin; Power, K; Klumpp, Jochen; Wang, J; Fanning, Seammus; Stephan, Roger (2015). A novel Tn3-like composite transposon harbouring blaVIM-1 in Klebsiella pneumoniae ssp. pneumoniae isolated from river water. Microbial Drug Resistance, 21(1):43-49.

Abstract

Objectives: We present a new plasmid (pOW16C2) with a novel Tn3-like transposon harboring blaVIM-1 from a Klebsiella pneumoniae strain isolated from river water in Switzerland. Methods: Complete nucleotide sequence of pOW16C2 was obtained using a Pacific Biosciences SMRT sequencing approach and coding sequences were predicted. Results: The 59,228 bp sequence included a typical IncN-like backbone and a mosaic structure with blaVIM-1, aacA4, aphA15, aadA1, catB2, qnrS1, sul1, and dfrA14 conferring resistance to carbapenems and other β-lactam antibiotics, aminoglycosides, chloramphenicol, quinolones, sulfonamides, and trimethoprim, respectively. Most of these resistance genes were inserted in a class 1 integron that was embedded in a novel Tn3-like composite transposon. Conclusions: IncN plasmids carrying carbapenemases are frequently isolated from K. pneumoniae strains in clinical settings. The dissemination of K. pneumoniae harboring blaVIM-1 in surface water is a cause for increased concern to public health.

Abstract

Objectives: We present a new plasmid (pOW16C2) with a novel Tn3-like transposon harboring blaVIM-1 from a Klebsiella pneumoniae strain isolated from river water in Switzerland. Methods: Complete nucleotide sequence of pOW16C2 was obtained using a Pacific Biosciences SMRT sequencing approach and coding sequences were predicted. Results: The 59,228 bp sequence included a typical IncN-like backbone and a mosaic structure with blaVIM-1, aacA4, aphA15, aadA1, catB2, qnrS1, sul1, and dfrA14 conferring resistance to carbapenems and other β-lactam antibiotics, aminoglycosides, chloramphenicol, quinolones, sulfonamides, and trimethoprim, respectively. Most of these resistance genes were inserted in a class 1 integron that was embedded in a novel Tn3-like composite transposon. Conclusions: IncN plasmids carrying carbapenemases are frequently isolated from K. pneumoniae strains in clinical settings. The dissemination of K. pneumoniae harboring blaVIM-1 in surface water is a cause for increased concern to public health.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Food Safety and Hygiene
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:2015
Deposited On:22 Feb 2016 13:43
Last Modified:08 Dec 2017 18:40
Publisher:Mary Ann Liebert
ISSN:1076-6294
Publisher DOI:https://doi.org/10.1089/mdr.2014.0055

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