In vitro transcription and translation of group B rotavirus strain IDIR gene 8 and immunoprecipitation by human sera.

AUTOR(ES)

Eiden, J J

RESUMO

Group B rotaviruses (GBRs) are associated with episodes of acute diarrhea in humans and a variety of animal species. To date, these agents have not been well adapted to growth in tissue culture, and evaluation of human sera for antibodies directed against GBRs has been hindered by the inability to obtain standardized and highly purified preparations of GBR antigens. In order to evaluate the reactivities of antisera with a highly specific antigen, we prepared a full-length cDNA clone of gene 8 of the IDIR strain of GBR. This clone was transcribed with T7 RNA polymerase, and the resulting RNA was translated in vitro with rabbit erythrocyte lysates. The polypeptide expressed from IDIR gene 8 was specifically precipitated by antibody directed against IDIR but not by antibody directed against ADRV (adult diarrhea rotavirus) or bovine strains of GBR. Subsequent immunoprecipitation reactions confirmed the presence of anti-IDIR antibodies among the U.S. population. Of 129 human serum specimens, 3 specifically immunoprecipitated the IDIR gene 8 polypeptide.

Documentos Relacionados

• The complete nucleic acid sequence of gene segment 3 of the IDIR strain of group B rotavirus.
• In vitro transcription and translation of simian rotavirus SA11 gene products.
• Prevalence of antibodies to human papillomavirus type 8 in human sera.
• Opsonization of Listeria monocytogenes type 4b by human adult and newborn sera.
• In vitro transcription catalyzed by heat-treated human rotavirus.