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Akiyama, Benjamin M.; Laurence, Hannah M.; Massey, Aaron R.; Costantino, David A.; Xie, Xuping; Yang, Yujiao; Shi, Pei-Yong; Nix, Jay C.; Beckham, J. David; Kieft, Jeffrey S.
Science (American Association for the Advancement of Science), 12/2016, Letnik: 354, Številka: 6316Journal Article
The outbreak of Zika virus (ZIKV) and associated fetal microcephaly mandates efforts to understand the molecular processes of infection. Related flaviviruses produce noncoding subgenomic flaviviral RNAs (sfRNAs) that are linked to pathogenicity in fetal mice. These viruses make sfRNAs by co-opting a cellular exonudease via structured RNAs called xrRNAs. We found that ZIKV-infected monkey and human epithelial cells, mouse neurons, and mosquito cells produce sfRNAs. The RNA structure that is responsible for ZIKV sfRNA production forms a complex fold that is likely found in many pathogenic flaviviruses. Mutations that disrupt the structure affect exonudease resistance in vitro and sfRNA formation during infection. The complete ZIKV xrRNA structure clarifies the mechanism of exonudease resistance and identifies features that may modulate function in diverse flaviviruses.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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