Structures required for poly(A) tail-independent translation overlap with, but are distinct from, cap-independent translation and RNA replication signals at the 3' end of Tobacco necrosis virus RNA.
Structures required for poly(A) tail-independent translation overlap with, but are distinct from, cap-independent translation and RNA replication signals at the 3' end of Tobacco necrosis virus RNA.
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Poly(A) 尾独立翻译所需的结构与烟草坏死病毒 RNA 3 端的帽子独立翻译和 RNA 复制信号重叠但不同。
DOI:
10.1016/j.virol.2006.08.054
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发表时间:
2007
期刊:
影响因子:
3.7
通讯作者:
Miller,WAllen
中科院分区:
文献类型:
--
作者:
Shen,Ruizhong;Miller,WAllen
Tobacco necrosis necrovirus (TNV) RNA lacks both a 5′ cap and a poly(A) tail but is translated efficiently, owing in part to a Barley yellow dwarf virus (BYDV)-like cap-independent translation element (BTE) in its 3′ untranslated region (UTR). Here, we identify sequence downstream of the BTE that is necessary for poly(A) tail-independent translation in vivo by using RNA encoding a luciferase reporter gene flanked by viral UTRs. Deletions and point mutations caused loss of translation that was restored by adding a poly(A) tail, and not by adding a 5′ cap. The two 3′-proximal stem–loops in the viral genome contribute to poly(A) tail-independent translation, as well as RNA replication. For all necroviruses, we predict a conserved 3′ UTR secondary structure that includes the BTE at one end of a long helical axis and the stem–loops required for poly(A) tail-independent translation and RNA replication at the other end. This work shows that a viral genome can harbor distinct cap- and poly(A) tail-mimic sequences in the 3′ UTR.
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DOI:
10.1038/nsb0302-158
发表时间:
2002
期刊:
Nature Structural Biology
影响因子:
--
作者:
G. Varani;F. Allain
通讯作者:
F. Allain
影响因子:
10.5
作者:
GALLIE, DR;WALBOT, V
通讯作者:
WALBOT, V
影响因子:
3.7
作者:
Matsuda, D;Dreher, TW
通讯作者:
Dreher, TW
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
A. Jacobson
通讯作者:
A. Jacobson
影响因子:
11.4
作者:
NIELSEN, PJ;TRACHSEL, H
通讯作者:
TRACHSEL, H