Molecular characterization of the hlyX-like gene of actinobacillus actinomycetemcomitans Y4

Susumu Kokeguchi, Masaru Hirosue, Hiroshi Maeda, Manabu Miyamoto, Shogo Takashiba, Yoji Murayama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We isolated and characterized a possible regulatory gene, designated actX gene, from Actinobacillus actinomyctemcomitans Y4, which defined the Actinobacillus pleuropneumoniae hlyX-like regulatory gene. DNA sequence analysis for plasmid clone pKM317 containing a 1.6-kb DNA insert indicated an open reading frame encoding a polypeptide of 257 amino acid residues. Analysis of the deduced amino acid sequence showed the presence of five characteristic cysteine residues in the N-terminal region and a putative DNA binding residue in the C-terminal region, indicating that actX might belong to a regulatory gene family. Escherichia coli DH5α and a mutant strain JRG1728 transformed by plasmid carrying actX manifested apparent hemolytic activity on sheep blood agar and grew anaerobically, although the original strains did not. (C) 2000 Editions scientifiques et medicales Elsevier SAS.

Original languageEnglish
Pages (from-to)721-725
Number of pages5
JournalResearch in Microbiology
Volume151
Issue number9
DOIs
Publication statusPublished - 2000

Fingerprint

Aggregatibacter actinomycetemcomitans
Regulator Genes
Plasmids
Actinobacillus
Actinobacillus pleuropneumoniae
Genes
DNA
Protein Sequence Analysis
DNA Sequence Analysis
Open Reading Frames
Agar
Cysteine
Sheep
Clone Cells
Escherichia coli
Amino Acids
Peptides

Keywords

  • Actinobacillus actinomycetemcomitans
  • HlyX-like gene
  • Regulatory gene

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Microbiology

Cite this

Molecular characterization of the hlyX-like gene of actinobacillus actinomycetemcomitans Y4. / Kokeguchi, Susumu; Hirosue, Masaru; Maeda, Hiroshi; Miyamoto, Manabu; Takashiba, Shogo; Murayama, Yoji.

In: Research in Microbiology, Vol. 151, No. 9, 2000, p. 721-725.

Research output: Contribution to journalArticle

Kokeguchi, Susumu ; Hirosue, Masaru ; Maeda, Hiroshi ; Miyamoto, Manabu ; Takashiba, Shogo ; Murayama, Yoji. / Molecular characterization of the hlyX-like gene of actinobacillus actinomycetemcomitans Y4. In: Research in Microbiology. 2000 ; Vol. 151, No. 9. pp. 721-725.
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