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1. (Article ID: 382)
Slavic D, Toffner TL, Monteiro MA, Perry MB, MacIinnes JI
Prevalence of O1/K1- and O2/K3-reactive Actinobacillus suis in healthy and diseased swine
Journal of Clinical Microbiology 38(10) (2000)
3759-3762
A cell surface antigen-typing system was devised for the swine pathogen Actinobacillus suis and used to examine the prevalence of different lipopolysaccharide (O) types in healthy and diseased pigs. The strains examined in this study were isolated from a variety of locations in Canada and from Kansas. Lipopolysaccharide preparations of 151 isolates of A. suis were characterized by immunoblotting using polyclonal antisera generated to strains SO4 (O1/K1), H89-1173 (O2/K3), and VSB 3714, a rough strain. Approximately 54% (62 of 114) of A. suis isolates from diseased pigs, all (11 of 11) isolates from healthy pigs, and all (4 of 4) reference strains reacted with O1/K1 antiserum. More than 80% (18 of 22) of A. suis strains used for bacterin production and approximately 41% (47 of 114) of isolates from diseased pigs bound O2/K3 antiserum. One isolate appeared to be rough, and five were untypeable. O1/K1- and O2/K3-reactive strains were equally prevalent in Kansas, whereas O2/K3-reactive strains were more common in Quebec and western Canada and O1/K1 strains were most common in Ontario. The fact that virtually all of the strains submitted for bacterin production were O2/K3-reactive strains is consistent with the notion that these strains may be more virulent than O1/K1 strains; alternatively, this may reflect geographic or other biases. In addition, we observed cross-reactivity between A. suis cell surface antigens and swine antisera to several other important pathogens. This finding may explain why previous attempts to develop a simple serodiagnostic test for A. suis have been unsuccessful.
serotype, Actinobacillus suis, Actinobacillus, Prevalence
NCBI PubMed ID: 11015398Journal NLM ID: 7505564Publisher: American Society for Microbiology
Correspondence: macinnes
uoguelph.ca
Institutions: Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada N1G 2W1, Institute for Biological Sciences, National Research Council, Ottawa, Ontario, Canada K1A 0R6
Methods: serological methods
The publication contains the following compound(s):
- Compound ID: 1104
Structure type: polymer chemical repeating unit
Trivial name: pustulan, β-1,6-glucan, β-(1,6)-glucan
Compound class: CPS, cell wall polysaccharide, glucan
Reference(s) to other database(s): GTC:G26777BZ, GlycomeDB:
863
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2. (Article ID: 4025)
Ganeshapillai J, Boncheff AG, Slavic D, Macinnes J, Monteiro MA
The lipopolysaccharide core of Actinobacillus suis and its relationship to those of Actinobacillus pleuropneumoniae
Biochemistry and Cell Biology 89(3) (2011)
351-358
The Gram-negative bacteria Actinobacillus suis colonizes the upper respiratory and genital tracts of swine. Along with capsular polysaccharides, lipopolysaccharides (O-chain→core→lipid A~cell) are a main cell-surface component of A. suis. In this study, we determined that A. suis lipopolysaccharide incorporates a conserved core that shares some structural features with several core types of A. pleuropneumoniae . These common core structural features likely account for the observed serological cross-reactivity between A. suis and A. pleuropneumoniae, and the data suggest that the structural epitopes responsible for immunogenicity are those in the outer core domain.
Lipopolysaccharide, core, Actinobacillus suis, Actinobacillus pleuropneumoniae
NCBI PubMed ID: 21639829Publication DOI: 10.1139/o11-003Journal NLM ID: 8606068Publisher: Ottawa: National Research Council of Canada
Correspondence: M.A. Monteiro
uoguelph.ca>
Institutions: Department of Chemistry, University of Guelph, Canada
Methods: 13C NMR, 1H NMR, NMR-2D, sugar analysis, ESI-MS, MS/MS, NMR-1D, immunoblotting
The publication contains the following compound(s):
- Compound ID: 9470
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L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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b-D-Galp-(1-4)-+ |
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D-gro-a-D-manHepp-(1-6)-D-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-Kdo
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a-D-Glcp-(1-6)-+ |
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Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G40545KZ
- Compound ID: 9473
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L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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D-GalaNAc-(1-4:1-6)-a-D-Galp-(1-3)-b-D-Galp-(1-4)-D-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-Kdo
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a-D-Glcp-(1-6)-+
xDGalaN = S-D-GalN (open chain) |
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Structure type: oligomer
Compound class: core oligosaccharide
- Compound ID: 9472
|
L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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b-D-Glcp-(1-4)-+ |
| |
D-gro-a-D-manHepp-(1-6)-D-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-Kdo
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a-D-Glcp-(1-6)-+ |
Show graphically |
Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G02843WU
- Compound ID: 9471
|
L-gro-a-D-manHepp-(1-2)-L-gro-a-D-manHepp-(1-3)-+
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D-gro-a-D-manHepp-(1-6)-D-gro-a-D-manHepp-(1-6)-b-D-Glcp-(1-4)-L-gro-a-D-manHepp-(1-5)-Kdo
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a-D-Glcp-(1-6)-+ |
Show graphically |
Structure type: oligomer
Compound class: core oligosaccharide
Reference(s) to other database(s): GTC:G63363FS
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