Monoclonal antibodies against pili of serologically distinct Bacteroides nodosus.

J. L. Gradin, K. M. Marta, S. L. Kaattari, G. E. Pluhar, J. A. Stephens, A. E. Sonn, A. W. Smith

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Several monoclonal antibodies (McAbs) against pili of Bacteroides nodosus were examined to determine their reactivity with 11 different serotypes. One McAb was identified by enzyme-linked immunosorbent assay (ELISA) analysis that bound to nine of the 11 serotypes and another that bound to the remaining two serotypes tested. In addition, some McAbs demonstrated specificity for a single serotype, while others displayed specificities for up to five other serotypes. Comparison of immunoblot analysis with the ELISA revealed that the former method was not as sensitive in that all McAbs positive by the ELISA, were not positive by immunoblot. Possible explanations of these findings are discussed. There appear to be several antigenic determinants on B. nodosus pili and considerable sharing of these determinants between pili types. The 11 serotypes analyzed by the McAbs in this report are representative of all 20 US serotypes as well as the A-set and D-set categories of Australia. Therefore, the two epitopes recognized by two of the McAbs reported herein encompass all of the currently characterized B. nodosus serotypes and may provide a basis for bivalent vaccines efficacious for all types of B. nodosus induced footrot in sheep.

Original languageEnglish (US)
Pages (from-to)117-120
Number of pages4
JournalCanadian journal of veterinary research = Revue canadienne de recherche vétérinaire
Issue number2
StatePublished - Apr 1991


Dive into the research topics of 'Monoclonal antibodies against pili of serologically distinct Bacteroides nodosus.'. Together they form a unique fingerprint.

Cite this