• Characterisation of the Plasmidome within Enterococcus faecalis Isolated from Marginal Periodontitis Patients in Norway 

      Song, Xiaobo; Sun, Jinglu; Mikalsen, Theresa; Roberts, Adam P.; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The present study aimed to identify and characterize plasmids in a national collection of oral Enterococcus faecalis (n = 106) isolated from patients with marginal periodontitis. Plasmid replicon typing was performed by multiplex-PCR and sequencing with specific primers for 18 rep-families and 1 unique sequence. Additional plasmid analysis by S1-PFGE was performed for comparison. Totally 120 plasmid ...
    • Comprehensive molecular, genomic and phenotypic analysis of a major clone of Enterococcus faecalis MLST ST40 

      Zischka, Melanie; Künne, Carsten T.; Blom, Jochen; Wobser, Dominique; Sakιnç, Türkân; Schmidt-Hohagen, Kerstin; Dabrowski, P. Wojtek; Nitsche, Andreas; Hübner, Johannes; Hain, Torsten; Chakraborty, Trinad; Linke, Burkhard; Goesmann, Alexander; Voget, Sonja; Daniel, Rolf; Schomburg, Dietmar; Hauck, Rüdiger; Hafez, Hafez M.; Tielen, Petra; Jahn, Dieter; Solheim, Margrete; Sadowy, Ewa; Larsen, Jesper; Jensen, Lars Bogø; Ruiz-Garbajosa, Patricia; Pérez, Dianelys Quiñones; Mikalsen, Theresa; Bender, Jennifer; Steglich, Matthias; Nübel, Ulrich; Witte, Wolfgang; Werner, Guido (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-12)
      Background: Enterococcus faecalis is a multifaceted microorganism known to act as a beneficial intestinal commensal bacterium. It is also a dreaded nosocomial pathogen causing life-threatening infections in hospitalised patients. Isolates of a distinct MLST type ST40 represent the most frequent strain type of this species, distributed worldwide and originating from various sources (animal, human, ...
    • Investigating the mobilome in clinically important lineages of Enterococcus faecium and Enterococcus faecalis 

      Mikalsen, Theresa; Pedersen, Torunn Annie; Willems, Rob J; Coque, Teresa M.; Werner, Guido; Sadowy, Eva; van Schaik, Willem; Jensen, Lars Bogø; Sundsfjord, Arnfinn; Hegstad, Kristin (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-10)
      Background: The success of Enterococcus faecium and E. faecalis evolving as multi-resistant nosocomial pathogens is associated with their ability to acquire and share adaptive traits, including antimicrobial resistance genes encoded by mobile genetic elements (MGE). Here, we investigate this mobilome in successful hospital associated genetic lineages, E. faecium sequence type (ST)17 (n=10) and ...