Tomato bushy stunt virus co-opts the RNA-binding function of a host metabolic enzyme for viral genomic RNA synthesis.
Tomato bushy stunt virus co-opts the RNA-binding function of a host metabolic enzyme for viral genomic RNA synthesis.
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番茄丛矮病毒利用宿主代谢酶的 RNA 结合功能来合成病毒基因组 RNA。
DOI:
10.1016/j.chom.2008.02.005
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发表时间:
2008
影响因子:
30.3
通讯作者:
Nagy,PeterD
中科院分区:
文献类型:
--
作者:
Wang,RobertYung-Liang;Nagy,PeterD
Tomato bushy stunt virus(TBSV), a plus-stranded [(+)] RNA plant virus, incorporates the host metabolic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) into the viral replicase complex. Here, we show that, during TBSV replication in yeast, the yeast GAPDH Tdh2p moves from the cytosol to the peroxisomal membrane surface, the site of viral RNA synthesis. In yeast cells lacking Tdh2p, decreasing the levels of its functionally redundant homolog Tdh3p inhibited TBSV replication and resulted in equivalent levels of (+) and minus-stranded [(−)] viral RNA, in contrast to the hallmark excess of (+)RNA. Tdh2p specifically bound an AU pentamer sequence in the (−)RNA, suggesting that GAPDH promotes asymmetric RNA synthesis by selectively retaining the (−)RNA template in the replicase complex. Downregulation ofGAPDHin a natural plant host decreased TBSV genomic RNA accumulation. Thus, TBSV co-opts the RNA-binding function of a metabolic protein, helping convert the host cell into a viral factory.
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DOI:
--
发表时间:
1991
影响因子:
11.1
作者:
D. Rochon
通讯作者:
D. Rochon
影响因子:
3.7
作者:
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通讯作者:
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影响因子:
16
作者:
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通讯作者:
Ahlquist, P
影响因子:
3.7
作者:
Panaviene, Z;Nagy, PD
通讯作者:
Nagy, PD
影响因子:
5.4
作者:
Z. Panaviene;T. Panavas;S. Serva;P. D. Nagy
通讯作者:
P. D. Nagy