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Canadian Journal of Veterinary Research logoLink to Canadian Journal of Veterinary Research
. 1989 Apr;53(2):251–254.

Identification of the heat-labile hemolysin of Actinobacillus pleuropneumoniae serotype 1.

J Devenish 1, S Rosendal 1
PMCID: PMC1255556  PMID: 2713790

Abstract

The heat-labile hemolysin of Actinobacillus pleuropneumoniae serotype 1 strain CM-5 was partially purified using ammonium sulfate precipitation and gel permeation chromatography. This partially purified material was subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis and blotted onto nylon filters. The filters were treated with convalescent pig serum and subsequently with CM-5 culture supernatant containing active hemolysin. A 104 kd peptide was identified as the hemolysin because it bound antibodies in convalescent pig serum which cross-linked active hemolysin. The same 104 kd protein when injected into a rabbit produced neutralizing antibodies to the CM-5 hemolysin in culture supernatant.

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Selected References

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