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Structure and functionality in flavivirus NS-proteins: Perspectives for drug design

By Michela Bollati, Karin Alvarez, Rene Assenberg, Cecile Baronti, Bruno Canard, Shelley Cook, Bruno Coutard, Etienne Decroly, Xavier de Lamballerie, Ernest A. Gould, Gilda Grard, Jonathan M. Grimes, Rolf Hilgenfeld, Anna M. Jansson, Helene Malet, Erika J. Mancini, Eloise Mastrangelo, Andrea Mattevi, Mario Milani, Gregory Moureau, Johan Neyts, Raymond J. Owens, Jingshan Ren, Barbara Selisko, Silvia Speroni, Holger Steuber, David I. Stuart, Torsten Unge and Martino Bolognesi

Abstract

Flaviviridae are small enveloped viruses hosting a positive-sense single-stranded RNA genome. Besides yellow fever virus, a landmark case in the history of virology, members of the Flavivirus genus, such as West Nile virus and dengue virus, are increasingly gaining attention due to their re-emergence and incidence in different areas of the world. Additional environmental and demographic considerations suggest that novel or known flaviviruses will continue to emerge in the future. Nevertheless, up to few years ago flaviviruses were considered low interest candidates for drug design. At the start of the European Union VIZIER Project, in 2004, just two crystal structures of protein domains from the flaviviral replication machinery were known. Such pioneering studies, however, indicated the flaviviral replication complex as a promising target for the development of antiviral compounds. Here we review structural and functional aspects emerging from the characterization of two main components (NS3 and NS5 proteins) of the flavivirus replication complex. Most of the reviewed results were achieved within the European Union VIZIER Project, and cover topics that span from viral genomics to structural biology and inhibition mechanisms. The ultimate aim of the reported approaches is to shed light on the design and development of antiviral drug leads

Topics: Biology and Microbiology
Publisher: Elesevier
Year: 2010
DOI identifier: 10.1016/j.antiviral.2009.11.009
OAI identifier: oai:nora.nerc.ac.uk:9230
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