Please use this identifier to cite or link to this item:
Title: Characterization of a novel multidrug resistance plasmid pSGB23 isolated from Salmonella enterica subspecies enterica serovar Saintpaul
Authors: Drautz-Moses, Daniela Isabel
Ding, Yichen
Zwe, Ye Htut
Chin, Seow Fong
Givskov, Michael
Schlundt, Jorgen
Yuk, Hyun-Gyun
Yang, Liang
Kohli, Gurjeet Singh
Schuster, Stephan Christoph
Keywords: Multidrug Resistance Plasmid
Issue Date: 2018
Source: Ding, Y., Zwe, Y. H., Chin, S. F., Kohli, G. S., Drautz-Moses, D. I., Givskov, M., et al. (2018). Characterization of a novel multidrug resistance plasmid pSGB23 isolated from Salmonella enterica subspecies enterica serovar Saintpaul. Gut Pathogens, 10(1), 20-.
Series/Report no.: Gut Pathogens
Abstract: Background: Salmonella enterica subspecies enterica serovar Saintpaul (S. Saintpaul) is an important gut pathogen which causes salmonellosis worldwide. Although intestinal salmonellosis is usually self-limiting, it can be life-threatening in children, the elderlies and immunocompromised patients. Appropriate antibiotic treatment is therefore required for these patients. However, the efficacy of many antibiotics on S. enterica infections has been greatly compromised due to spreading of multidrug resistance (MDR) plasmids, which poses serious threats on public health and needs to be closely monitored. In this study, we sequenced and fully characterized an S. enterica MDR plasmid pSGB23 isolated from chicken. Results: Complete genome sequence analysis revealed that S. Saintpaul strain SGB23 harbored a 254 kb megaplasmid pSGB23, which carries 11 antibiotic resistance genes responsible for resistance to 9 classes of antibiotics and quaternary ammonium compounds that are commonly used to disinfect food processing facilities. Furthermore, we found that pSGB23 carries multiple conjugative systems, which allow it to spread into other Enterobacteriaceae spp. by self-conjugation. It also harbors multiple types of replicons and plasmid maintenance and addictive systems, which explains its broad host range and stable inheritance. Conclusions: We report here a novel MDR plasmid pSGB23 harboured by S. enterica. To our knowledge, it carried the greatest number of antibiotic resistance genes with the broadest range of resistance spectrum among S. enterica MDR plasmids identified so far. The isolation of pSGB23 from food sources is worrisome, while surveillance on its further spreading will be carried out based on the findings reported in this study.
DOI: 10.1186/s13099-018-0249-6
Schools: School of Chemical and Biomedical Engineering 
School of Biological Sciences 
Interdisciplinary Graduate School (IGS) 
Organisations: Singapore Centre for Environmental Life Sciences Engineering
Research Centres: NTU Food Technology Centre 
Rights: © 2018 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCELSE Journal Articles

Citations 50

Updated on May 29, 2023

Web of ScienceTM
Citations 50

Updated on May 29, 2023

Page view(s) 50

Updated on May 29, 2023

Download(s) 50

Updated on May 29, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.