International Journal of Infectious Diseases (Oct 2018)

Emergence of IncX4 plasmids encoding mcr-1 in a clinical isolate of Klebsiella pneumoniae in Japan

  • Tatsuya Tada,
  • Kohei Uechi,
  • Isamu Nakasone,
  • Masashi Nakamatsu,
  • Kazuhito Satou,
  • Takashi Hirano,
  • Teruo Kirikae,
  • Jiro Fujita

Journal volume & issue
Vol. 75
pp. 98 – 100

Abstract

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The mcr-1 gene encodes a phosphoethanolamine transferase that confers resistance to colistin by transferring phosphoethanolamine to lipid A. A 33-kb IncX4 plasmid harboring mcr-1 was detected in a Klebsiella pneumoniae isolate and two Escherichia coli isolates, and a 66-kb IncI2 plasmid was detected in three E. coli isolates in hospitals in Okinawa, Japan. Keywords: Colistin resistance, MCR-1 producing Klebsiella pneumoniae, IncX4 plasmid harboring mcr-1