Antigenic properties of Campylobacter rectus (Wolinella recta) major S-layer proteins

Y. Kobayashi, H. Ohta, Susumu Kokeguchi, Y. Murayama, K. Kato, H. Kurihara, K. Fukui

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Abstract

The antigenic properties of the surface layer (S-layer) proteins of various Campylobacter rectus strains including 24 clinical isolates and the type strain ATCC 33238 were examined. S-layer proteins were extracted from whole cells by acid treatment according to the method of McCoy et al. (Infect. Immun. 11, 517-525, 1975). The acid extracts from 23 of the isolates and ATCC 33238 contained two major proteins with molecular masses of 130 kDa and 150 kDa, both of which were identified as subunits of the S-layer after comparison with the protein profiles of acid-treated (S-layer-deficient) cells. An S-layer protein from one isolate (CI-808) demonstrated a different molecular mass (160 kDa). Both the 150-kDa proteins of ATCC 33238 and isolate CI-306 and the 160-kDa protein of CI-808 were purified by ion-exchange chromatography in the presence of urea. In Ouchterlony immunodiffusion experiments with these purified proteins and rabbit antiserum raised to each purified protein, both common and strain-specific antigenic determinants were identified in the C. rectus S-layer proteins.

Original languageEnglish
Pages (from-to)275-280
Number of pages6
JournalFEMS Microbiology Letters
Volume108
Issue number3
DOIs
Publication statusPublished - Apr 15 1993

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Keywords

  • Campylobacter rectus
  • Periodontal disease
  • S-layer

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Applied Microbiology and Biotechnology
  • Microbiology

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