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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Terasaki, Kaori Lokugamage, Kumari G. Makino, Shinji Murakami, Shin |
| Description | Author Affiliation: Terasaki K ( Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.); |
| Abstract | The Bunyaviridae family includes pathogens of medical and veterinary importance. Rift Valley fever virus (RVFV), a member in the Phlebovirus genus of the family Bunyaviridae, is endemic to sub-Saharan Africa and causes a mosquito-borne disease in ruminants and humans. Viruses in the family Bunyaviridae carry a tripartite, single-stranded, negative-sense RNA genome composed of L, M, and S RNAs. Little is known about how the three genomic RNA segments are copackaged to generate infectious bunyaviruses. We explored the mechanism that governs the copackaging of the three genomic RNAs into RVFV particles. The expression of viral structural proteins along with replicating S and M RNAs resulted in the copackaging of both RNAs into RVFV-like particles, while replacing M RNA with M1 RNA, lacking a part of the M RNA 5' UTR, abrogated the RNA copackaging. L RNA was efficiently packaged into virus particles released from cells supporting the replication of L, M, and S RNAs, and replacing M RNA with M1 RNA abolished the packaging of L RNA. Detailed analyses using various combinations of replicating viral RNAs suggest that M RNA alone or a coordinated function of M and S RNAs exerted efficient L RNA packaging either directly or indirectly. Collectively, these data are consistent with the possibility that specific intermolecular interactions among the three viral RNAs drive the copackaging of these RNAs to produce infectious RVFV. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 2 |
| Volume Number | 108 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2011-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Genome, Viral Hemorrhagic Fevers, Viral Virology RNA, Viral Genetics RNA Rift Valley Fever Rift Valley Fever Virus 5' Untranslated Regions Animals Blotting, Northern Blotting, Western Cercopithecus Aethiops Gene Deletion Models, Genetic Mutation Vero Cells Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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