Plasmid with Colistin Resistance Gene mcr-1 in Extended-Spectrum-β-Lactamase-Producing Escherichia coli Strains Isolated from Pig Slurry in Estonia

Author:

Brauer Age1,Telling Kaidi2,Laht Mailis3,Kalmus Piret4,Lutsar Irja2,Remm Maido1,Kisand Veljo3,Tenson Tanel3

Affiliation:

1. Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia

2. Institute of Microbiology, University of Tartu, Tartu, Estonia

3. Institute of Technology, University of Tartu, Tartu, Estonia

4. Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia

Abstract

ABSTRACT A plasmid carrying the colistin resistance gene mcr-1 was isolated from a pig slurry sample in Estonia. The gene was present on a 33,311-bp plasmid of the IncX4 group. mcr-1 is the only antibiotic resistance gene on the plasmid, with the other genes mainly coding for proteins involved in conjugative DNA transfer ( taxA , taxB , taxC , trbM , and the pilX operon). The plasmid pESTMCR was present in three phylogenetically very different Escherichia coli strains, suggesting that it has high potential for horizontal transfer.

Funder

Estonian National Program for Health Sciences

Estonian Research Council

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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