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. 1986 Dec;54(3):893–896. doi: 10.1128/iai.54.3.893-896.1986

Molecular characterization of proteins from porcine spirochetes.

L A Joens, R B Marquez
PMCID: PMC260255  PMID: 3536749

Abstract

Sonicated preparations of Treponema hyodysenteriae and Treponema innocens were subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blot analysis. Treponemal proteins were electrophoresed on a 10% polyacrylamide slab gel in a discontinuous Tris-glycine system and either stained with Coomassie blue dye or transferred electrophoretically at 20 mA for 16 h and 30 mA for 3 h to nitrocellulose paper. Staining of the gels revealed at least 42 distinct T. hyodysenteriae and T. innocens proteins, with molecular sizes ranging from greater than 100 to 14 kilodaltons (kDa). Each species contained 12 to 16 major protein bands; five of the proteins were common to both species. Fourteen major antigens were identified in T. hyodysenteriae isolate B204 by using serum specimens from pigs in the acute stage of swine dysentery. Twelve additional antigens were detected in isolate B204 when convalescent-phase serum specimens were reacted to the blot. A wide band at 16 kDa was identified with convalescent-phase serum specimens in T. hyodysenteriae but not in T. innocens. This 16-kDa antigen was also identified in T. hyodysenteriae with colonic secretions from convalescent pigs.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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