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Regulation of flavivirus RNA synthesis and capping.


ABSTRACT: RNA viruses, such as flaviviruses, are able to efficiently replicate and cap their RNA genomes in vertebrate and invertebrate cells. Flaviviruses use several specialized proteins to first make an uncapped negative strand copy of the viral genome that is used as a template for the synthesis of large numbers of capped genomic RNAs. Despite using relatively simple mechanisms to replicate their RNA genomes, there are significant gaps in our understanding of how flaviviruses switch between negative and positive strand RNA synthesis and how RNA capping is regulated. Recent work has begun to provide a conceptual framework for flavivirus RNA replication and capping and shown some surprising roles for genomic RNA during replication and pathogenesis.

SUBMITTER: Saeedi BJ 

PROVIDER: S-EPMC3797245 | biostudies-literature | 2013 Nov-Dec

REPOSITORIES: biostudies-literature

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Regulation of flavivirus RNA synthesis and capping.

Saeedi Bejan J BJ   Geiss Brian J BJ  

Wiley interdisciplinary reviews. RNA 20130808 6


RNA viruses, such as flaviviruses, are able to efficiently replicate and cap their RNA genomes in vertebrate and invertebrate cells. Flaviviruses use several specialized proteins to first make an uncapped negative strand copy of the viral genome that is used as a template for the synthesis of large numbers of capped genomic RNAs. Despite using relatively simple mechanisms to replicate their RNA genomes, there are significant gaps in our understanding of how flaviviruses switch between negative a  ...[more]

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