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Structural features unique to enteric adenoviruses

M Brown1, J D Grydsuk, E Fortsas

  • 1Department of Microbiology, University of Toronto, Ontario, Canada.

Archives of Virology. Supplementum
|January 1, 1996
PubMed
Summary
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Researchers identified a specific protein VI epitope common to enteric adenoviruses, aiding in their identification. This finding highlights evolutionary links and potential diagnostic applications for pediatric gastroenteritis agents.

Area of Science:

  • Virology
  • Immunology
  • Molecular Biology

Background:

  • Enteric adenoviruses are significant causes of pediatric gastroenteritis.
  • Human adenovirus 41 (h-41) is a key enteric adenovirus serotype.

Purpose of the Study:

  • To characterize monoclonal antibodies against h-41 to identify key epitopes.
  • To investigate the evolutionary relationships and tropism determinants of enteric adenoviruses.

Main Methods:

  • Monoclonal antibody characterization against human adenovirus 41 (h-41).
  • Expression of protein VI gene fragments as fusion proteins.
  • Epitope mapping using T7 gene 10 fusion proteins in the pTope vector.

Main Results:

  • An epitope on protein VI was identified, common to enteric adenoviruses (subgenera A and F) but not non-enteric types.

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  • The epitope was mapped to amino acids 114-125 within the central domain of protein VI.
  • This epitope reflects the evolutionary relationship between subgenus A and F adenoviruses.

    • Conclusions:

    • The identified epitope provides insights into the structural features determining enteric adenovirus tropism.
    • This epitope holds potential value for the clinical identification of enteric adenoviruses in specimens.