Subtyping of Listeria monocytogenes Based on Nucleotide Polymorphism in the clpC, inlA, hlyA, and plcA Genes and Rapid Identification of L. monocytogenes Genetically Similar to Clinical Isolates

Ken-ichi Honjoh, Kumiko Fujihara, Takahiro Haraguchi, Yukari Ono, Hiroshi Kobayashi, Takahisa Miyamoto, Hiroshi Hiwaki, Hideaki Kamikado, Sung Sik Jang, Sangryeol Ryu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To develop a new method for identification of Listeria monocytogenes genetically similar to clinical isolates, single-nucleotide polymorphism (SNP) typing and multi-locus sequence typing (MLST) of 126 isolates of L. monocytogenes from clinical and environmental samples were performed based on sequence analysis of parts of four genes (hlyA, clpC, inlA, and plcA). Based on the sequences of the isolates in this study, SNP typing showed that hlyA, clpC, inlA, and plcA genes were categorized into 9, 14, 17, and 21 types, respectively. MLST showed that the isolates were grouped into 35 types including 12 types of clinical isolates. Out of those, four MLST types were found in food or environmental and clinical isolates. In particular, all clinical isolates with serotype 1/2a were grouped into the same hlyA SNP A5 type. A method using real-time PCR combined with Cycling Probe Technology was developed for rapid identification of SNP type of L. monocytogenes genetically similar to the clinical isolates. By using this method, the 1/2a clinical isolates showing MLST-2 were successfully identified with a specific primer set and a cycling probe designed on the basis of sequence of hlyA. Furthermore, clinical isolates of serotype 4b showing MLST-4 or -35 were successfully identified by a method using cycling probes based on sequences of clpC and inlA.

Original languageEnglish
Pages (from-to)557-564
Number of pages8
JournalFood Science and Technology Research
Volume14
Issue number6
DOIs
Publication statusPublished - 2008

Fingerprint

Listeria
Listeria monocytogenes
Nucleotides
Polymorphism
Single Nucleotide Polymorphism
Genes
nucleotides
single nucleotide polymorphism
genetic polymorphism
genes
serotypes
Sequence Analysis
Real-Time Polymerase Chain Reaction
methodology
Technology
quantitative polymerase chain reaction
Food
sequence analysis
multilocus sequence typing
Gene

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Food Science
  • Chemical Engineering(all)
  • Marketing
  • Industrial and Manufacturing Engineering

Cite this

Subtyping of Listeria monocytogenes Based on Nucleotide Polymorphism in the clpC, inlA, hlyA, and plcA Genes and Rapid Identification of L. monocytogenes Genetically Similar to Clinical Isolates. / Honjoh, Ken-ichi; Fujihara, Kumiko; Haraguchi, Takahiro; Ono, Yukari; Kobayashi, Hiroshi; Miyamoto, Takahisa; Hiwaki, Hiroshi; Kamikado, Hideaki; Jang, Sung Sik; Ryu, Sangryeol.

In: Food Science and Technology Research, Vol. 14, No. 6, 2008, p. 557-564.

Research output: Contribution to journalArticle

Honjoh, Ken-ichi ; Fujihara, Kumiko ; Haraguchi, Takahiro ; Ono, Yukari ; Kobayashi, Hiroshi ; Miyamoto, Takahisa ; Hiwaki, Hiroshi ; Kamikado, Hideaki ; Jang, Sung Sik ; Ryu, Sangryeol. / Subtyping of Listeria monocytogenes Based on Nucleotide Polymorphism in the clpC, inlA, hlyA, and plcA Genes and Rapid Identification of L. monocytogenes Genetically Similar to Clinical Isolates. In: Food Science and Technology Research. 2008 ; Vol. 14, No. 6. pp. 557-564.
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