Hepatitis C virus-like particle budding: role of the core protein and importance of its Asp111.

نویسندگان

  • Emmanuelle Blanchard
  • Christophe Hourioux
  • Denys Brand
  • Malika Ait-Goughoulte
  • Alain Moreau
  • Sylvie Trassard
  • Pierre-Yves Sizaret
  • Frederic Dubois
  • Philippe Roingeard
چکیده

In the absence of a hepatitis C virus (HCV) culture system, the use of a Semliki Forest virus replicon expressing genes encoding HCV structural proteins that assemble into HCV-like particles provides an opportunity to study HCV morphogenesis. Using this system, we showed that the HCV core protein constitutes the budding apparatus of the virus and that its targeting to the endoplasmic reticulum by means of the signal sequence of E1 protein is essential for budding. In addition, the aspartic acid at position 111 in the HCV core protein sequence was found to be crucial for virus assembly, demonstrating the usefulness of this system for mapping amino acids critical to HCV morphogenesis.

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عنوان ژورنال:
  • Journal of virology

دوره 77 18  شماره 

صفحات  -

تاریخ انتشار 2003