The conserved stem-loop II structure at the 3' untranslated region of Japanese encephalitis virus genome is required for the formation of subgenomic flaviviral RNA.
The conserved stem-loop II structure at the 3' untranslated region of Japanese encephalitis virus genome is required for the formation of subgenomic flaviviral RNA.
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DOI:
10.1371/journal.pone.0201250
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Chang RY
中科院分区:
文献类型:
--
作者:
Chen YS;Fan YH;Tien CF;Yueh A;Chang RY
Flaviviruses accumulate abundant subgenomic RNA (sfRNA) in infected cells. It has been reported that sfRNA results from stalling of host 5’-to-3’ exoribonuclease XRN1 at the highly structured RNA of the 3’ untranslated region (UTR). Although XRN1 digestion of a 3’-terminal 800-nt RNA could stall at a position to generate the sfRNA in vitro, we found that knocking out XRN1 had no effect on the accumulation of sfRNA in Japanese encephalitis virus (JEV) infected cells. Mutagenesis studies revealed that the stemloop II (SLII) at the 3’ UTR is required for the accumulation of sfRNA. According to the results of an in vitro RNA-dependent RNA polymerase (RdRp) assay, the (-)10431-10566 RNA fragment, containing the putative promoter on the antigenome for the sfRNA transcription, binds to RdRp protein and exhibits a strong promoter activity. Taken together, our results indicate that the JEV sfRNA could be transcribed initially and then be trimmed by XRN1 or other unidentified exoribonucleases.
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DOI:
10.3390/v3091739
发表时间:
2011-09
期刊:
Viruses
影响因子:
--
作者:
Gebhard LG;Filomatori CV;Gamarnik AV
通讯作者:
Gamarnik AV
影响因子:
3.4
作者:
Cumberworth SL;Clark JJ;Kohl A;Donald CL
通讯作者:
Donald CL
影响因子:
5.4
作者:
Goertz, G. P.;Fros, J. J.;Pijlman, G. P.
通讯作者:
Pijlman, G. P.
影响因子:
5.4
作者:
Liu, Ruikang;Moss, Bernard
通讯作者:
Moss, Bernard
影响因子:
4.8
作者:
Fan, Yi-Hsin;Nadar, Muthukumar;Chang, Ruey-Yi
通讯作者:
Chang, Ruey-Yi