Abstract
Eight monoclonal antibodies (MAbs) directed against bovine adenovirus (BAV) 2 subtype B hexon were studied with 12 different hexon types of human adenoviruses (AV) belonging to 5 different subgenera using indirect ELISA, passive hemagglutination (HA), and gel diffusion assays. Two hexon types of animal origin (BAV3 and SAV16) were investigated, too. The reactivity of the MAb IV.F3 was the broadest, i.e. in ELISA and HA experiments it reacted with all hexon types studied. Based on these results as well as on the results of gel diffusion assays, this MAb should recognize the genus specific epitope of adenovirus hexons. Three MAbs (CA12, III.B11, and A12) could recognize different epitopes showing intersubgenus or intertype specificities. In spite of the fact, that all the eight MAbs proved to be bound by the hexon of ORT/111 (BAV2 subtype B) blotted onto nitrocellulose filter, four of the eight MAbs (BB7, BH5, II.A9, and IV.F5) failed to react with any human, and animal hexon types used in the present experiments. The results suggest that a gradient of antigenic relationship may exist between BAV2 hexon and the hexons of human serotypes.
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