Packaged and Free Satellite Tobacco Mosaic Virus (STMV) RNA Genomes Adopt Distinct Conformational States.
Packaged and Free Satellite Tobacco Mosaic Virus (STMV) RNA Genomes Adopt Distinct Conformational States.
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DOI:
10.1021/acs.biochem.6b01166
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发表时间:
2017-04-25
期刊:
影响因子:
2.9
通讯作者:
Weeks KM
中科院分区:
文献类型:
--
作者:
Larman BC;Dethoff EA;Weeks KM
The RNA genomes of viruses likely undergo multiple functionally important conformational changes during their replication cycles, changes that are poorly understood at present. We used two complementary in-solution RNA structure probing strategies (SHAPE-MaP and RING-MaP) to examine the structure of the RNA genome of satellite tobacco mosaic virus inside authentic virions and in a capsid-free state. Both RNA states feature similar three-domain architectures in which each major replicative function – translation, capsid coding, and genome synthesis – fall into distinct domains. There are, however, large conformational differences between the in-virion and capsid-free states, primarily in one arm of the central T domain. These data support a model in which the packaged capsid-bound RNA is constrained in a local high-energy conformation by the native capsid shell. The removal of the viral capsid then allows the RNA genome to relax into a more thermodynamically stable conformation. These data support a model in which the RNA architecture of the central T domain changes during capsid assembly and disassembly and may play a role in genome packaging.
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DOI:
10.1261/rna.043323.113
发表时间:
2014-06
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Rice GM;Leonard CW;Weeks KM
通讯作者:
Weeks KM
DOI:
10.1073/pnas.1219988110
发表时间:
2013-04-02
影响因子:
11.1
作者:
Hajdin, Christine E.;Bellaousov, Stanislav;Weeks, Kevin M.
通讯作者:
Weeks, Kevin M.
影响因子:
2.9
作者:
Schroeder, Susan J.
通讯作者:
Schroeder, Susan J.
影响因子:
5.6
作者:
Larson, SB;Day, J;McPherson, A
通讯作者:
McPherson, A
影响因子:
3.7
作者:
MIRKOV, TE;MATHEWS, DM;DODDS, JA
通讯作者:
DODDS, JA