Heterologous expression of a gene encoding cholesterol oxidase in probiotic strains of Lactobacillus plantarum and Propionibacterium freudenreichii under the control of native promoters

Pornpimon Kiatpapan, Mitsuo Yamashita, Nami Kawaraichi, Tomo Yasuda, Yoshikatsu Murooka

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

To develop systems for the expression of heterologous genes in probiotic strains of Lactobacillus and Propionibacterium, we used Lactobacillus plantarum and Propionibacterium freudenreichii and a modified gene encoding cholesterol oxidase (choA) from Streptomyces sp. to generate working models. The acetyl coenzyme A carboxylase (acc) promoter derived from the acc operon of L. plantarum L137 and a previously constructed shuttle vector, pRN14, were used to construct vectors for the expression of heterologous genes in lactic acid bacteria. The concentration of cholesterol oxidase in recombinant L. plantarum carrying choA fused to the NH2-terminal region of the first open reading frame of the acc operon was 3.6 mU/mg of protein. Using the promoters from Propionibacterium, namely, P4, P8, and P138, which enabled high-level expression of choA in Escherichia coli, and a previously constructed shuttle vector pPK705, we constructed expression vectors for Propionibacterium. In recombinant P. freudenreichii subsp, shermanii IFO12426, the activities of cholesterol oxidase generated under the control of promoters P4, P8, and P138 were 1.6, 4.3, and 7.2 U/mg of protein, respectively. The expression of heterologous genes may facilitate the production of useful proteins in these economically important bacteria.

Original languageEnglish
Pages (from-to)459-465
Number of pages7
JournalJournal of Bioscience and Bioengineering
Volume92
Issue number5
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Cholesterol Oxidase
Gene encoding
Cholesterol
Coenzymes
Acetyl-CoA Carboxylase
Genetic Vectors
Genes
Proteins
Bacteria
Lactic acid
Escherichia coli
Lactic Acid
Probiotics
Oxidoreductases

Keywords

  • Acetyl coenzyme A carboxylase promoter
  • Cholesterol oxidase
  • Lactobacillus plantarum
  • Propionibacterium freudenreichii, native promoter

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

Cite this

Heterologous expression of a gene encoding cholesterol oxidase in probiotic strains of Lactobacillus plantarum and Propionibacterium freudenreichii under the control of native promoters. / Kiatpapan, Pornpimon; Yamashita, Mitsuo; Kawaraichi, Nami; Yasuda, Tomo; Murooka, Yoshikatsu.

In: Journal of Bioscience and Bioengineering, Vol. 92, No. 5, 2001, p. 459-465.

Research output: Contribution to journalArticle

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