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Strain diversity in major surface protein 2 expression during tick transmission of Anaplasma marginale.

TitleStrain diversity in major surface protein 2 expression during tick transmission of Anaplasma marginale.
Publication TypeJournal Article
Year of Publication2000
AuthorsRurangirwa, FR, Stiller, D, Palmer, GH
JournalInfect Immun
Volume68
Issue5
Pagination3023-7
Date Published2000 May
ISSN0019-9567
KeywordsAmino Acid Sequence, Anaplasma, Animals, Antigenic Variation, Antigens, Bacterial, Bacterial Outer Membrane Proteins, Bacterial Proteins, Base Sequence, Dermacentor, Molecular Sequence Data, Sequence Homology, Amino Acid
Abstract

Specific major surface protein 2 (MSP2) variants are expressed by Anaplasma marginale within the tick salivary gland and, following transmission, are expressed during acute rickettsemia. In previous work, we have shown that a restricted pattern of MSP2 variants is expressed in the salivary glands of Dermacentor andersoni ticks infected with the South Idaho strain of A. marginale. Now we demonstrate that the identical restriction does not apply to two other strains of A. marginale, and that different variants are also expressed when the same strain is transmitted by different Dermacentor spp. This indicates that antigenic diversity among strains is maintained in tick transmission and may be a significant constraint to MSP2 vaccine development.
Alternate JournalInfect. Immun.
PubMed ID10769008
PubMed Central IDPMC97523
Grant ListR01 AI44005 / AI / NIAID NIH HHS / United States