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Conserved recombinant antigens of Anaplasma marginale and Babesia equi for serologic diagnosis.

TitleConserved recombinant antigens of Anaplasma marginale and Babesia equi for serologic diagnosis.
Publication TypeJournal Article
Year of Publication1995
AuthorsKnowles, DP, Perryman, LE, McElwain, TF, Kappmeyer, LS, Stiller, D, Palmer, GH, Visser, ES, Hennager, SG, Davis, WC, McGuire, TC
JournalVet Parasitol
Volume57
Issue1-3
Pagination93-6
Date Published1995 Mar
ISSN0304-4017
KeywordsAmino Acid Sequence, Anaplasmosis, Animals, Antigens, Bacterial, Babesiosis, Cattle, Conserved Sequence, Enzyme-Linked Immunosorbent Assay, Salivary Glands, Serologic Tests, Ticks
Abstract

The competitive inhibition ELISA (CI-ELISA) format overcomes problems associated with antigen purity since the specificity of the CI-ELISA depends solely on the monoclonal antibody (mAb) used. Therefore, the CI-ELISA format is well suited for use with recombinant antigens. Molecular clones expressing a conserved 19 kDa protein of Anaplasma marginale and a 34 kDa protein of Babesia equi were derived and characterized. The 19 kDa A. marginale protein, conserved in all recognized Anaplasma species, and present in the infected tick salivary gland, was reactive with all bovine immune sera tested. The 34 kDa B. equi protein contains a protein epitope bound by antibody in equine immune sera from 19 countries. Monoclonal antibodies reactive with these proteins were derived and applied with recombinant copies of the 19 kDa A. marginale and 34 kDa B. equi proteins in a CI-ELISA format.

Alternate JournalVet. Parasitol.
PubMed ID7597796