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Southern blotting analyses of strains ofCampylobacter fetus using the conserved region ofsapA

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Abstract

Chromosomal DNA of 27 strains ofCampylobacter fetus was analyzed by Southern blotting with a probe of the conserved region ofsapA. The probe hybridized with 23 strains that produced type A lipopolysaccharide. These strains had more than sixsapA homologs. In Southern blots ofSalI-digested chromosomal DNA separated by pulsed-field gel electrophoresis, one fragment from 19 strains and two fragments from 4 strains hybridized. These data indicate that multiplesapA homologs are localized to a limited region on the chromosomal DNA ofC. fetus and thus suggest the possibility of developing a typing system using this method.

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Abbreviations

PCR :

Polymerase chain reaction

PFGE :

Pulsed-field gel electrophoresis

LPS :

Lipopolysaccharide

SAP :

Surface array protein

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Correspondence to Masaki Fujita.

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Fujita, M., Morooka, T., Fujimoto, S. et al. Southern blotting analyses of strains ofCampylobacter fetus using the conserved region ofsapA . Arch. Microbiol. 164, 444–447 (1995). https://doi.org/10.1007/BF02529743

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  • DOI: https://doi.org/10.1007/BF02529743

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